$($b$)$ Heat is now added to the gas, causing it to expand. State $2$ is reached when the piston

is just in contact with the stops. $($The stops are there to prevent the piston from

moving upward.$)$ From State $2,$ heat continues to be added to the gas until it reaches

State $3.($Note that $3$ is clearly larger than $1.)$

Show the entire process, from State $1$ to State $3,$ on a $($i$.$e$.$ pressure vs specific

volume$)$ diagram. You do not need to include numerical values of $$ or $$ in your

sketch, but show clearly the three states and the paths between them.State $1$

$($b$)$ Heat is now added to the gas, causing it to expand. State $2$ is reached when the piston

is just in contact with the stops. $($The stops are there to prevent the piston from

moving upward.$)$ From State $2,$ heat continues to be added to the gas until it reaches

State $3.($Note that $P_3$ is clearly larger than $P_1.)$

Show the entire process, from State $1$ to State $3,$ on a $P-v($i$.$e$.$ pressure vs specific

volume$)$ diagram. You do not need to include numerical values of $P$ or $v$ in your

sketch, but show clearly the three states and the paths between them.