MHT CET · Chemistry · Thermodynamics (C)
Which of the following is true for the value of \(\Delta \mathrm{H}-\Delta \mathrm{U}\) at constant volume?
- A R
- B Zero
- C \(\frac{3}{2} R\)
- D \(\frac{5}{2} R\)
Answer & Solution
Correct Answer
(B) Zero
Step-by-step Solution
Detailed explanation
\(\Delta H_1=\Delta U+P \Delta V\)
At constant volume, \(\Delta \mathrm{V}=0\)
\(\begin{array}{ll}
\therefore & P \Delta V=0 \\
\therefore & \Delta H-\Delta U=0
\end{array}\)
At constant volume, \(\Delta \mathrm{V}=0\)
\(\begin{array}{ll}
\therefore & P \Delta V=0 \\
\therefore & \Delta H-\Delta U=0
\end{array}\)
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