Question

Volume versus temperature graphs for a given mass of an ideal gas are shown in figure at two different values of constant pressure. What can be inferred about relation between P1 and P2 ?

• A. P1 > P2
• B. P1 = P2
• C. P1 < P2
• D. Data is insufficient

Answer 1

Answer: (A)

P1 > P2

Answer 2

According to Charle’s law $V \propto T$

or $\frac{V}{T}$= constant = $\frac{1}{P}$

As in graph, slope at $P_{2}$is more than slope at $P_{1},$

$\therefore P_{1} > P_{2}$