年級

問題的種類

自然科學 大學

請問一下第60題,實心跟空心的體積膨脹怎麼想都想不到有什麼差..0.0

32 °C+32 when °C=07 of=0 AF 1 0°C ,= 0°F. mperature, Thermal Expansion, and Gas Laws pressure is 1.00 atm. What is the number of molecules of air in Of= F 69 the lecture hall? when X B. C. Prc 70. Problems 59 and 60 are paired. 59. N A solid aluminum sphere has a radius of 0.5700 m when it is at a temperature of 90.0°F. What is the change in volume of the sphere when it is heated to a temperature of 110.0°F? 60. C A solid aluminum sphere is heated from an initial tempera- ture to a higher temperature. If, instead, the aluminum sphere were hollow but started with the same radius at the same initial temperature and was then heated to the same final temperature, how would the new volume of the hollow sphere compare with that of the solid aluminum sphere? Explain your reasoning. 61. N A rigid tank contains 3.00 X 10-2 m² of an ideal gas at a pres- sure of 5.15 X 10% Pa and a temperature of 300.0 K. How many a. moles and b. molecules of the gas are contained in the tank? 62. N In December 2006, two Missouri representatives filed legisla- tion requiring that the price of motor fuel be adjusted for volume changes caused by temperature fluctuations. The industry stan- dard assumes the temperature is 60°F. In the summer, when the temperature easily exceeds 60°F in Missouri, gasoline expands and its density decreases Recause at one end as shown in Figure y separates the gas from the out- H in a vertical plane. In Figure the tube has length Li, whereas n of air has length L2. Find an ameters given) for the length L3 re P19.49C, when the tube is ect to the vertical. Ivin defined absolute zero, why to be the temperature of some ne temperature of liquid helium? de negative temperature? uses a constant-volume ther- 15. 71. 1 by volume. you

待回答 回答數: 0
物理 高中

請問一下第二小題要怎麼算 為什麼答案不是280*4/7+30*3/7

Alm Alang 7 309 140 三、今有體積各為5升的甲、乙兩真空燒瓶,以細管連接如 右圖,又知 27°C 時,純水、甲醇的饱和蒸氣壓分別為 709 30mmHg、280mmHg HANNE 甲 1. 若於甲瓶置入30%尿素(UNH2)2CO)水溶液100 克,乙瓶置 入30%葡萄糖(C6H1206)水溶液 200 克。細管體積不計, Com 一 定溫27°C 達成平衡後,瓶內蒸氣壓為若干mmHg ?(5分) 1.5 mol 2. 若於甲瓶置X 32 克的甲醇;乙瓶置入27克的水。細管體積不計,定溫27°C 達成平衡後,瓶內蒸氣壓多少 mmHg?(已知 27°C時,水、甲醇,假設兩者 混合可形成理想溶液)(5分) 1 24 9 me O 9 > T26 7-04)

待回答 回答數: 0
1/19288