Easy MCQ +4 / -1 PYQ · JEE Mains 2022

Which of the following relation is not correct?

  1. A $\Delta \mathrm{H}=\Delta \mathrm{U}-\mathrm{P} \Delta \mathrm{V}$ Correct answer
  2. B $\Delta \mathrm{U}=\mathrm{q}+\mathrm{W}$
  3. C $\Delta \mathrm{S}_{\text {sys }}+\Delta \mathrm{S}_{\text {surr }} \geqslant 0$
  4. D $\Delta \mathrm{G}=\Delta \mathrm{H}-\mathrm{T} \Delta \mathrm{S}$

Solution

If $\mathrm{U}+\mathrm{Pv}$ (By definition)<br/><br/> $\Delta 14=\Delta \mathrm{U}+\Delta(\mathrm{Pr})$ at constant pressure<br/><br/> $\Delta \mathrm{H}=\Delta \mathrm{U}+\mathrm{P} \Delta \mathrm{V}$

About this question

Subject: Chemistry · Chapter: Thermodynamics · Topic: Zeroth and First Law

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