# Please see the attachment for my question

arun
123 Points
7 years ago
it’s answer is 3 i.e. density will remain constnt during the process. it is because
A popular form of ideal gas equation is   $PM=\rho RT \Rightarrow \frac{P}{T}=\frac{\rho R}{M}$
and in the graph it can be seen that slope of line remains contant as R and M are already and as slope is constant so $\rho$ should be constant therefore density remains constant during the process.