can anyone answer question 4 for me,thx
http://www.ssgc.edu.hk/subject/physics/material/F.4%20Materials/2002-03%20F.4%20Final%20I.pdf
Physics Mechanics (10 marks)
2007-12-10 1:30 am
回答 (1)
2007-12-10 6:28 am
✔ 最佳答案
PV=nRT1000P=nR(100)
P=0.1nR
after it cool down,T=20,since the can found collapsed,
it means pressure =atmospheric pressure,which is remain unchange
PV=nRT
V=nR(20)/P=nR(20)/[0.1nR]=200(cm^3)
If atmospheric pressure is 10^5 Pa,since the can found collapsed,
it means pressure =atmospheric pressure=10^5 Pa
收錄日期: 2021-04-13 14:40:53
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