KTGHard
Question
An ideal gas can be expanded from an initial state to a certain volume through two different processes (i) PV2 = constant and (ii) P = KV2 where K is a positive constant. Then
Options
A.Final temperature in (i) will be greater then in (ii)
B.Final temperature in (ii) will be greater then in (i)
C.Total heat given to the gas in (i) case is greater than in (ii)
D.Total heat given to the gas in (ii) case is greater than in (i)
Solution
From equation PV = nRT
PC < PB , VC = VB and TB > TC
WAB > WAC (TB − TA) > TC − TA
So By Ist law
Q = ᐃU + W
Q =
nRᐃT + W QAB > QAC
PC < PB , VC = VB and TB > TC
WAB > WAC (TB − TA) > TC − TA
So By Ist law
Q = ᐃU + W
Q =
nRᐃT + W QAB > QAC Create a free account to view solution
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