Q1. While gas from a cooking cylinder is used, pressure does not fall appreciably till the last few minutes. Why?
Q2. When we place a gas cylinder on a van and the van moves, does the kinetic energy of the molecules increase? Does the temperature increase?
My ans: KE increases, Temp remains same
Q3. Can we define the temperature of vacuum? The temperature of a single molecule?
Q4. Comment on the following statement. The temperature of all molecules in a sample of gas is the same.
Q5. A gas is kept in a rigid container. If a load of 10kg is put on the top of the container, does the pressure increase?
-
UP 0 DOWN 0 2 1
1 Answers
24ans1
http://books.google.com/books?id=jegDAAAAMBAJ&pg=PA857&lpg=PA857&dq=While+gas+from+a+cooking+cylinder+is+used,+pressure+does+not+fall+appreciably+till+the+last+few+minutes&source=bl&ots=dznBeT56Tj&sig=FmyG7etXAcm_h0kKfmfJ6nC6ev8&hl=en&ei=hXV6S9WwCs--rAesmLT1Dw&sa=X&oi=book_result&ct=result&resnum=1&ved=0CAYQ6AEwAA#v=onepage&q=&f=false
ans2
KE sample =fnRT/2 which depends only on temp...so i dont think there will eb any effect on KE of sample
ans3
http://www.kutl.kyushu-u.ac.jp/seminar/MicroWorld1_E/Part3_E/P33_E/SH_of_vacuum_E.htm
ans4 If temp is same ..then avg energy of sample is same
KE=KbT/2
ans5 I dont think pressure should change...
