# Solve this following

Question:

Directions : Question number 1,2 and 3 are based on the following paragraph. Two moles of helium gas are taken over the cycle ABCDA, as shown in the $\mathrm{P}-\mathrm{T}$ diagram.

Assuming the gas to be ideal the work done on the gas in taking it from A to B is :-

1. $400 \mathrm{R}$

2. $500 \mathrm{R}$

3. $200 \mathrm{R}$

4. 300

Correct Option: 1

Solution: