Question

An ideal monoatomic gas undergoes the process AB as shown in the figure. If the heat supplied and the work done in the process are $\Delta Q$ and W respectively. The ratio $\Delta Q$ : W is :

• A. 2.5
• B. 1.67
• C. 0.67
• D. 0.4

Answer 1

The correct option is A 2.5

Process is isobaric
$\Delta Q=W+\Delta U\Delta Q=W+\frac{f}{2}W\frac{\Delta Q}{W}=\frac{f}{2}+1$