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. Woek 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) = (1 xx R xx 100)/(1) = 100 R V_(B) = (1 xx R xx 600)/(3) = 200 R`
`because V_(B) gt V_(A)` so expansion of gas takes place
`V_(B) = 200 xx 0.0821 = 16.42 L`