One mole of an ideal gas is subjected to a two step reversible process (A-B and B-C). The pressure at A and C is same. Mark the correct statement(s) :

Options

A. Work involved in the path AB is zero
B. In the path AB work will be done on the gas by the surrounding
C. Volume of gas at C = 3 `xx` volume of gas at A
D. Volume of gas at B is 16.42 litres

Answer

C, D

Explanation

At `V_(A)=(1xxRxx100)/(1)=100R`
`V_(B)=(1xxRxx600)/(3)=200R`
`becauseV_(B) gt V_(A)` so expansion of gas takes place
`V_(B)=200xx0.0821=16.42 L`