1. Tardigrade
  2. Question
  3. Chemistry
  4. An ideal gas undergoes a reversible isothermal expansion from state I to state II followed by a reversible adiabatic expansion from state II to state III. The correct plot(s) representing the changes from state I to state III is(are) ( p: pressure, V: volume, T: temperature, H: enthalpy, S: entropy)

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. An ideal gas undergoes a reversible isothermal expansion from state I to state II followed by a reversible adiabatic expansion from state II to state III. The correct plot(s) representing the changes from state I to state III is(are)
( $p$ : pressure, $V$ : volume, $T$ : temperature, $H$ : enthalpy, $S$ : entropy)

JEE AdvancedJEE Advanced 2021

Solution:

$(I) \xrightarrow[\text{expansion}]{\text{Reversible isotherm}} (II) \xrightarrow[\text{expansion}]{\text{Reversible adiabatic}} (III)$
So, the correct option is/are:
image
image
image
Reversible isothermal process is isoenthalpic while reversible adiabatic process is isoentropic.