Assertion: The internal energy of an ideal gas does not change during an isothermal process. Reason: The decrease in volume of a gas is compensated by a corresponding increase in pressure, when its temp. is held constant. Assertion: The internal energy of an ideal gas does not change during an isothermal process. Reason: The decrease in volume of a gas is compensated by a corresponding increase in pressure when its temp. is held constant. September 8, 2021 Category: Cengage NEET by C.P Singh , Chapter 21 - Laws of Thermodynamics , Part 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related