WBJEE · Chemistry · Thermodynamics (C)
At constant pressure, the heat of formation of a compound is not dependent on temperature, when
- A \(\Delta C_{p}=0\)
- B \(\Delta C_{v}=0\)
- C \(\Delta C_{p}>0\)
- D \(\Delta C_{p} < 0\)
Answer & Solution
Correct Answer
(A) \(\Delta C_{p}=0\)
Step-by-step Solution
Detailed explanation
Key Point According to Kirchhoff sequation \[ \Delta H_{(f)}=\Delta H_{(i)}+C_{P}(\Delta T) \] At constant pressure \[ \Delta C_{p}=O \] Therefore, heat of formation \(\left(\Delta H_{f}\right)\) does not depend on temperature and value of \(\Delta C_{p}\) i.e. when…
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