1. occurring or performed at constant volume, especially in thermodynamics
Usage: technical; physics

Examples

• In an isochoric process, the volume of a gas remains constant while pressure and temperature change.
• The heating of a rigid container of gas is an example of an isochoric process.
• Isochoric heating occurs when energy is added to a fixed volume of gas.
• The relationship between pressure and temperature in an isochoric process follows Gay-Lussac's Law.
• Engineers must account for isochoric conditions when designing sealed pressure vessels.