Which of the following statements is correct?

  • A
    All spontaneous processes are thermodynamically irreversible.
  • B
    All spontaneous processes are thermodynamically reversible.
  • C
    If an isolated system is spontaneous in a particular direction,the entropy of the system always decreases.
  • D
    $A$ spontaneous process can be made reversible without the help of any external factor.

Explore More

Similar Questions

Mixing of non-reacting gases is generally accompanied by

In a reversible expansion,one mole of gas is expanded isothermally at $200 \ K$ till its volume increases $10$ times. Calculate $\Delta S_{total}$ at equilibrium (in $J \ K^{-1}$)?

Given $\Delta _rS^o = -266 \ J \ K^{-1}$ and the listed $S_m^o$ values,calculate $S^o$ for $Fe_3O_{4(s)}$ for the reaction: $4 Fe_3O_{4(s)} + O_{2(g)} \to 6 Fe_2O_{3(s)}$. Given $S_m^o(Fe_2O_3) = 87 \ J \ K^{-1} \ mol^{-1}$ and $S_m^o(O_2) = 205 \ J \ K^{-1} \ mol^{-1}$.

For a reversible adiabatic expansion of an ideal gas,which of the following is equal to zero?

State the limitation of the second law of thermodynamics.

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo