Question

Figure shows graphs of pressure vs density for an ideal gas at two temperatures T1 and T2.
(a) T1 > T2
(b) T1 = T2
(c) T1 < T2
(d) Any of the three is possible.
Figure

Answer 1

The graphs shows that  Temperature $\bold{T_1}$ is greater than Temperature $\bold{T_2}$

Explanation:

• The slope of straight line $T_1$ is greater than that of $T_2$. This means that For

• Today, the rms speed of a gas is given by $3P_{\rho}$.  

• It means gas rms of $T_1$ molecules are higher than $T_2$ molecules.

• Also, higher temperature gas has a higher velocity of rms.

• So,$T_1$ > $T_2$. So (a) the answer is correct.              

Answer 2

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