Question

The internal energy (U) and the density (r) of an ideal gas follow the law Ur = constant during a particular process. The same process will be correctly shown on a P–U diagram as –

• A. (a)
• B.
• C.
• D.

Answer 1

Answer: (D)

Answer 2

$PV = \frac{m}{M}RT$

Initially PV = $\frac{6}{M}R \times 500$

$\frac{P}{2}V = \frac{6–x}{M}$ R × 300(if x g gas leaks out)

Hence, 2 = $\frac{6}{6–x} \times \frac{5}{3}$

x = 1 gm