Question

At constant pressure, which of the following graph best shows the relationship between temperature and volume of a gas?

• A. $A$
• B. $B$
• C. $C$
• D. $D$
• E. $E$

Answer 1

Answer: (A)

$A$

At constant pressure, the graph ($A$) best shows the relationship between temperature and volume of a gas.

$PV=nRT$

At constant $P$ and $n,T$ is directly proportional to $V$.

Hence, a plot of $T$ vs $V$ is a straight line passing through origin.