tolong jelaskan

100 gram air terjadi ng menyertai reaksi C kapasitas ang menyertakan mg terlibat dalam but melepaskan akan berharga menyerap kalor erharga positif. Promin akan mtalpi. Per- mokimia gah dari Ayo Berlatih 1. Jelaskan arti dari persamaan termokimia berikut! C(s) + O2(g) CO₂(g) AH=-393,5 kJ.mol-1 2. Tuliskan persamaan termokimia dari pernyataan berikut! Untuk pembakaran sempurna 1 mol metanol (CH,OH) menjadi gas CO₂ dan uap air, dilepaskan kalor sebesar 692,6 kJ. 3. Pada reaksi pembakaran 2 mol gas NO menjadi gas NO,, dilepaskan kalor sebesar 114,14 kJ, menurut reaksi: 2NO(g) + O2(g) ►2NO2(g) AH = -114,14 kJ Hitunglah kalor yang dilepaskan jika 1,5 gram gas NO dibakar pada tekanan tetap! (M, NO = 30) 4. Kalor yang dilepaskan ketika terjadi reaksi pembakaran gas CO menjadi CO₂ adalah -283,0 kJ.mol-¹, menurut reaksi: 1 co(g) +0,(g) Hitunglah kalor CO₂(g) AH=-283,0 kJ.mol-1 yang diserap jika 1,1 gram gas CO₂ diuraikan menjadi gas CO dan oksigen! (A, C = 12, 0 = 16) Bab V Termokimia

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09.05 42 *l.l LTED 1] 2. Read the two stories carefully. Story 1 Once upon a time, there was a boy who had a pet fish named Tommy. He kept the fish in a barrel until it got pretty big. The boy had to change a good deal of water for Tommy. His laziness in changing the water gave him the idea to teach Tommy to live without water. He took Tommy out of the barrel. After only a few minutes, Tommy began to cry for water. "Stop crying!" said the boy, "I will teach you how to live without water." But how could Tommy live without water? The boy was persistent. He kept taking Tommy out of the barrel. Day by day, Tommy lived on the land for longer periods of time. After a while Tommy could wag its tail on the wet grass and he was happy to show off to the boy. Eventually, Tommy could live on the wet grass all night. "I can live on the land just fine if I am in the shade," said Tommy. The boy was very pleased with Tommy's progress. He told Tommy to live without water for the rest of his life. He promised to bring Tommy everywhere if he learned to stay under the sun. Tommy now lived without water. He could walk down the dusty road under the hot sun. He followed the boy around like a dog with its owner. When the boy looked for worms to eat, Tommy tagged along and got some for himself. The townspeople were amused looking at a fish walking on its tail. They wondered how the boy had taught Tommy. "That's a long story," answered the boy. Those who were rolling in money offered to buy Tommy, but the boy never wanted to sell Tommy. The story of how the boy lost Tommy is sad and unusual at the same time. On Tommy's birthday, the boy took Tommy to town. He had warned Tommy about the town's old bridge they would cross because there were a lot of holes in the bridge. When they walked on the bridge, the boy forgot about Tommy, who was tagging along behind him. He was looked back to warn Tommy about the holes, but it was too late. Tommy was nowhere to be seen. The boy braced himself to look through the holes. From one of the holes, he saw Tommy floating on the water. Tommy had fallen through the hole into the river and drowned. (PR/100%/GG) Otorisasi sistem untuk mengedit file ini. A 10 Edit × Otorisasi Isi & Tanda Anotasi Konversi Semua Tangan

unsur unsur intrinsik dalam cerita tersebut

07.17 ← 2. Read the two stories c... LTE1 4G+ .ill .ill 95% A 2. Read the two stories carefully. Story 1 Once upon a time, there was a boy who had a pet fish named Tommy. He kept the fish in a barrel until it got pretty big. The boy had to change a good deal of water for Tommy. His laziness in changing the water gave him the idea to teach Tommy to live without water. He took Tommy out of the barrel. After only a few minutes, Tommy began to cry for water. "Stop crying!" said the boy, "I will teach you how to live without water." But how could Tommy live without water? The boy was persistent. He kept taking Tommy out of the barrel. Day by day, Tommy lived on the land for longer periods of time. After a while Tommy could wag its tail on the wet grass and he was happy to show off to the boy. Eventually, Tommy could live on the wet grass all night. "I can live on the land just fine if I am in the shade," said Tommy. The boy was very pleased with Tommy's progress. He told Tommy to live without water for the rest of his life. He promised to bring Tommy everywhere if he learned to stay under the sun. Tommy now lived without water. He could walk down the dusty road under the hot sun. He followed the boy around like a dog with its owner. When the boy looked for worms to eat, Tommy tagged along and got some for himself. The townspeople were amused looking at a fish walking on its tail. They wondered how the boy had taught Tommy. "That's a long story," answered the boy. Those who were rolling in money offered to buy Tommy, but the boy never wanted to sell Tommy. The story of how the boy lost Tommy is sad and unusual at the same time. On Tommy's birthday, the boy took Tommy to town. He had warned Tommy about the town's old bridge they would cross because there were a lot of holes in the bridge. When they walked on the bridge, the boy forgot about Tommy, who was tagging along behind him. He was looked back to warn Tommy about the holes, but it was too late. Tommy was nowhere to be seen. The boy braced himself to look through the holes. From one of the holes, he saw Tommy floating on the water. Tommy had fallen through the hole into the river and drowned. (PR/100%/GG) Story 2 Unit 1 New Ways of Looking at Life O III = 5

past tense dan present perfect tense dari nomor 22 sampai 26

s. P hy I went ble at the Fersity in rom niversity? D eekend? house. don't like Ocabulary Windi Aska 137 Setiabudhi Street Bandung 17th May, 2018 Dear Yoga, Yesterday, I received your very interesting letter. I remember I 22)... you my last letter about three months ago. Since then a lot of things happened. To begin with, I. must tell you that my uncle and aunt from America visited us last week. They 23)... in New York for ten years now and they still like it there. As a teacher of English I 24). obliged to make the most of this opportunity to speak English. I 25... so much English in such a short time. It was a good chance to practice my English. Before I forget, I 26).. a ticket for a pop concert, which will be used on next Saturday. 27).. at a concert? Well, I haven't. So, I am really looking forward to it. In the letter, you 28) me three months ago you asked me if I like my new job. Well, Yoga it is the best thing that 29)... to me in my life. Please write back soon. Warm Regards, Windi Aska 22. a. b. C. 23. Wing text is for questions number 22 to 29. a. b. C. 24. a. b. C. 25. a. b. C. d. e. 26. a. b. C. send sent has sent lives lived has lived feel felt Has feel Don't' ever speak Never speak Didn't ever speak Has never spoken Hasn't ever spoken get Did get Has just get d. e. d. e. d. e. d. e. has send have sent have lived living has felt have felt Have just got Gotten The Wright Brothers 67

hallo boleh bantuin aku jawab soal ini besok selasa dikumpulkan plis

Pilihlah satu jawaban yang benar. (Nor) Organisme yang hidup dalam suatu ekosistem berbeda-beda. Ekosistem danau (1), sawah (2), dan kebun (3) digambarkan dalam irisan tiga himpunan sebagai berikut. 1. 4 3 Organisme P, Q, dan R secara berurutan adalah .... P A. Bunglon B. Padi C. Belut D. Jamur merang E. Belut Katak Rumput Ikan Lalat R 2. Perhatikan gambar berikut. R Tumbuhan paku Serangga Kadal Ular Lumut Burung jalak Sumber: www.shutterstock.com Komponen abiotik yang harus diminimalkan di dalam kumbung tempat pemeliharaan organisme tersebut adalah .... 3. 4. suhu B. udara C. garam mineral D. cahaya matahari E. kelembapan udara berfungsi sebagai substrat untuk Komponen abiotik pada suatu ekosistem berlangsungnya suatu kehidupan. Komponen abiotik yang diperlukan untuk reaksi pada proses fotosintesis adalah .... air, pH, dan udara C. air, pH, dan cahaya matahari air, udara, dan cahaya matahari D. topografi, air, dan cahaya matahari E. topografi, udara, dan cahaya matahari Pak Budi membuat akuarium air tawar untuk dipasang di dalam rumahnya. Tindakan yang tepat berkaitan dengan pemberian komponen abiotik, agar ikan mas koki (Carrasius auratus) yang dipeliharanya hidup sehat adalah . . . . A. memasang aerator B. meletakkan terumbu karang C. memasukkan tanaman Hydrilla sp. D. memberikan sinar lampu yang terang E. memasang gambar pemandangan di balik kaca A. IPA Biologi SMA/MA Kelas X A. B. 5. Pada satu siklus pernapasan, terjadi satu kali menghirup udara dan satu kali mengembuskan udara. Pada kondisi lingkungan abiotik normal, ketika kita menarik napas panjang, komponen udara yang paling banyak masuk melalui hidung adalah .... uap air B. nitrogen C. oksigen D. nitrogen dioksida E. karbon dioksida an at ab er

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1. Berikan nama senyawa berikut: a. CH₂-CH-CH-CH-CH-C₂H₁ CHL CH 4. 2. Buatlah struktur dari nama senyawa dibawah ini a. 3-isopropil-1-pentuna 4-etil-4,5-dimetil-heksana b. 5. 3. Tuliskanlah persamaan termokimia: a C₂H + Ch b. Pentena +0₂ 6. UJIAN AKHIR SEMESTER GANJIL T.P 2022/2023 : KIMIA b. CH₂-CH-CH-CH-CH₂ CH₂ CH₂ CH₂ CH₂ CH₂ 8. 9 BIDANG STUDI KELAS Ha + Eno Cp + 2Fa 200 + 2Ho Diketahui persamaan termokimia: Naal + 3H₂ 2NH₂ AH=-92,22 kj Berapakah entalpi pembentukan standar (OH) dari NHica? Diberikan data sebagai berikut: 2HF CFA C₂H Gunakan Hukum Hess untuk menghitung OH reaksi: C₂H+6Fn 2CF4+ 4HF Jika diketahui energi ikatan rata-rata C-H -413 kj/mol C-C = 347 kj/mol CI-CI-243 kj/mol Hitunglah AH untuk reaksi dibawah ini HH 0,03 0,03 H-C-C-H+CI-CI HH HH 7. Dengan berdasarkan pada teori tumbukan, jelaskan bagaimana pengaruh faktor-faktor berikut ini terhadap laju reaksi: (B) 0,20 0,20 C-CL-346 kj/mol H-CI-432 kj/mol a. Konsentrasi pereaksi b. Suhu c. Luas permukaan Pada percobaan penentuan laju reaksi A + B (A) (M) (M) 0,01 0,02 0.03 0,20 0,40 0,60 XI IPA/IPS AH=-537 kj AH=-680 ki AH=+52,3 ki HH H-C-C-CI+H-CL 0,08 0,18 0,36 0,54 Berdasarkan data tersebut, tentukan orde reaksi A dan B, serta persamaan Laju reaksi nya 10. Konsentrasi kesetimbangan untuk reaksi: N₂O) hasil, diperoleh data sebagai berikut Laju reaksi (MS) 0,02 Perhatikan Persamaan reaksi kesetimbangan berikut ini: 2H + O 2H₂O AH-484 kj Tentukan arah pergeseran kesetimbangan jika terhadap sistem kesetimbangan tersebut: a. Ditambahkan gas oksigen b. Volume diperbesar c. Tekanan ditingkatkan 2NO Pada 298 k adalah [NO]= 0,2 mol L dan [NO] -0,001 mol L Tentukan nilai Ke dan Kp reaksi tersebut pada 298k. (R-0,082)

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Sistem tersebut adalah A.9 kJ B.9,9 kJ 14. Perhatikan data berikut C. 10,1 kJ D. II kJ Reaksi I: C₂Hs +5 0₂ 3 CO₂ + 4 H₂O AH-PkJ Reaksi II NH₂CI+NaOH NII: + NaCLAH = +QKJ Pernyataan yang benar dan data tersebut adalah A Reaksi II sistem menyerap kalor, reaksi eksoterm D Reaksi I lingkungan menyerap kalor, reaksi endoterm E Reaks: II lingkungan menyerap kalor, reaksi endoterm B Reaksi I sistem melepas kalor reaksi eksoterm C.Reaksi II lingkungan menyerap kalor, reaksi eksoterm 15. Perhatikan gambar berikut! 27 °C Sistem 50 °C Lingkungan Berdasarkan gambar tersebut maka dapat disimpulkan bahwa kondisi tersebut adalah.... A Endoterm karena kalor masuk ke sistem B. Endoterm karena kalor menuju lingkungan D. Eksoterm karena kalor masuk ke sistem E. Eksoterm karena kalor ke luar menuju lingkungan C. Eksoterm karena kalor meninggalkan lingkungan 16. Perhatikan reaksi berikut! SH2 = -13k 27 C 2 C₂H6g)+702 (g) →4 CO2(g)+6 H₂O(g),AH = -P kJ Berdasarkan data tersebut di atas maka AHC° C₂H6 adalah kJ/mol A.- 2P B-P C+ P/2 D.-P/2 E.+ 2P 17. Jika diketahui: N₂ (g) + 3 H₂ (g) = 2 NH3 4H = -92 kJ Besarnya perubahan entalpi penguraian standar gas NH, adalah.... 3H4 = R A. - 92 kJ/mol B. - 46 kJ/mol C. + 46 kJ/mol D. +92 kJ/mol E + 184 kJ/mol. 18. Diketahui perubahan entalpi pembentukan standar Na₂SO: (s) sebesar - 1.267 kJ. Persamaan termokimia yang tepat untuk pernyataan di atas adalah A. Na₂SO4 (s) → 2 Na (s) + S (s) + 2 O₂ (g) AH = - 1.267 kJ B. Na₂SO4 (s) →→→ 2 Nat (aq) + SO: 2 (aq) AH = -1.267 kJ C. 2 Na* (aq) + SO4-2 (aq) → Na₂SO4 (s) AH = - 1.267 kJ D. 2 Na (s) + SO₂ (g) + O₂(g) → Na₂SO4 (s) AH = -1.267 kJ E. 2 Na (s) + S (s) + 2 O₂ (g) → Na2SO4 (s) AH = -1.267 kJ 19. Sebanyak 30 gram urea (Mr Urea = 60) dimasukan ke dalam kalorimeter yang berisi 500 ml air. Hasi pengamatan termometer menunjukan terjadi perubahan suhu dimana suhu awal air adalah 28°C kemudia mengalami penurunan menjadi 21°C. Bila massa larutan dianggap hanya masa air dan kalor jenis larutan 4,2 J gr-1oC-1. Besarnya perubahan entalpi pelarutan urea dalam satuan kJ mol-1 yang tepat adalah .... A. - 29,4 kJ/mol B. - 14,7 kJ/mol C. + 14,7 kJ/mol D. + 29,4 kJ/mol E. + 58,8 kJ/mol 20. Perhatikan gambar berikut! AHI -> 35 k B E110 kJ D 2H3> Nilai R=...kJ D.-125 A.+ 95 B.-95 C.-110 B.Jawablah pertanyaan berikut! 1.Tuliskan semua isomer dari heksana! E.+ 125 2 Diketahui All, CO₂ = -344 kJ/mol; AILIO = -286 kJ/mol, A CHIOH = -284 kJ/mol. Tentukan pem entalpi reaksi CH₂OH + O₂ CO₂ + H₂O (belum setara)!