Question

Select the correct options for an ideal gas undergoing a process as shown in diagram.

• A. If ${}^{\prime }{n}^{\prime }$ is changing ,${}^{\prime }{V}^{\prime }$ must also be changing.
• B. If ${}^{\prime }{n}^{\prime }$ is constant. ${}^{\prime }{V}^{\prime }$ must be constant.
• C. If ${}^{\prime }{n}^{\prime }$ is constant .${}^{\prime }{V}^{\prime }$ must be changing
• D. If ${}^{\prime }{n}^{\prime }$ is changing ${}^{\prime }{V}^{\prime }$ must be constant.

Answer 1

Answer: (A)

If ${}^{\prime }{n}^{\prime }$ is changing ,${}^{\prime }{V}^{\prime }$ must also be changing.

$PV=nRT\text{As n-changes V also should change}\Rightarrow V\propto n\text{As "n"increases , V increases}$