Get Answers to all your Questions

header-bg qa

An ideal gas undergoes isothermal expansion at constant pressure.  During the process :
Option: 1  enthalpy increases but entropy decreases.
Option: 2  enthalpy remains constant but entropy increases.
Option: 3  enthalpy decreases but entropy increases.
Option: 4  Both enthalpy and entropy remain constant.  

Answers (1)


\Delta H = nC_{p}\Delta T \\ \Delta S = nR ln (V_{f}/V_{i})\geqslant 0

Posted by

vishal kumar

View full answer

Crack JEE Main with "AI Coach"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support