Consider a P-V diagram in which the path followed by one mole of perfect gas in a cylindrical container is shown in Fig.

(a) Find the work done when the gas is taken from state 1 to state 2.
(b) What is the ratio of temperature T1/T2, if V2 = 2V1?
(c) Given the internal energy for one mole of gas at temperature T is (3/2) RT, find the heat supplied to the gas when it is taken from state 1 to 2, with V2 = 2V1.
Consider a P-V diagram in which the path followed by one mole of perfect gas in a cylindrical container is shown in Fig.
(a) Find the work done when the gas is taken from state 1 to state 2.
(b) What is the ratio of temperature T1/T2, if V2 = 2V1?
(c) Given the internal energy for one mole of gas at temperature T is (3/2) RT, find the heat supplied to the gas when it is taken from state 1 to 2, with V2 = 2V1.
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1 Answer
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This is a long answer type question as classified in NCERT Exemplar
pV1/2= constant
P=k/
Work done from 1 to 2
W=
from ideal equation = pV=nRT
T= pV/nR=
T=
T1= , T1=
=
U=
= RT1( )
=2p1V11/2( )
= 2p1V11/2(2 )
= 2p1V1( )= 2RT1( )
=
= RT1( )+ 2RT1( )
=
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