Question

should energy be suppliead at constant volume or pressure

Answer 1

➡Isothermal processes. In an isothermal process, the temperature stays constant, so the pressure and volume are inversely proportional to one another.

➡The internal energy of an ideal gas is proportional to the temperature, so if the temperature is kept fixed the internal energy does not change.

➡An isochoric process, also called a constant-volume process, an isovolumetric process, or an isometric process,
➡is a thermodynamic process during which the volume of the closed system undergoing such a process remains constant.