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Grade 11Physical Chemistry

1) in lab. liquid in a thermally insulated container is strred for one hour, by a mecchanical linkage to a in surrounding, for this process :
a) W
b) W 0
c) W 0 non molar
d) W > 0 ; q =0
please give me correct explanation
​2) for two mole of an ideal gas; the relation between Cp & Cv (non molar) are :
​1. CpCv = 2R
2. Cv−Cp = 2R
3. CpCv = R
4. Cv−Cp = R

Profile image of swaraj bhosle
9 Years agoGrade 11
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1 Answer

Profile image of Vikas TU
9 Years ago
Since system is thermal insulator the heat would not outside and come inside and therfore the change in internal energy would be zero.
Q would be positive and hence W done would be positive too perhaps from W =Q – 0
And for any number of moles the realtion that is Cp – Cv = R holds for true.
As the realtion is ideendent from the number moles.