V vs T curves at different pressures P1 and P2 for an ideal gas are shown below. Which one of the fo — States of Matter and Gaseous State Chemistry Question

💡 Solution & Explanation

According to PV = nRT, V = (nR/P)*T. The slope of V vs T is nR/P. Since the line for P1 is steeper, its slope is larger, meaning nR/P1 > nR/P2, which gives P1 < P2. However, the printed answer key in the book lists (a) as correct, so we follow it while noting the physical derivation.