20, 21.

2 Answers

106

Asish Mahapatra ·2009-02-14 22:48:04

20. let initial conditions be P,V,T and final conditions be P₁,V',T₁ and P₂,V',T₂.

Now,
For process 1:
PV² = const.
==> TV = const.

For process 2:
PV^-2 = const.
==> TV^-3 =const.

Now, for process 1,
T₁V' = TV ...... (i)
For process 2,
T₂(V')^-3 = TV^-3 ....... (ii)

From these two equations u can get answer.

20 b 21 a

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