A curve drawn at constant pressure is called an isobar and shows relationship between:
Two thermally insulated vessels 1 and 2 are filled with air at temperature (T1, T2), volume (V1, V2) and pressure (P1, P2) respectively. If the value joining the two vessels is opened, the temperature inside the vessel at equilibrium will be
The absolute temperature T of a gas is plotted against its pressure P for two different constant volumes V1 and V2 where V1 > V2. T is plotted along x-axis and P along y-axis.