JEE Mains · Chemistry · STD 11 - 5. Thermodynamics and thermochemistry
Enthalpy of sublimation of iodine is \(24\, cal\, g^{-1}\) at \(200\,^oC\). If specific heat of \(I_2(s)\) and \(I_2(vap)\) are \(0.055\) and \(0.031\, cal\, g^{-1}K^{-1}\) respectively, then enthalpy of sublimation of iodine at \(250\,^oC\) in \(cal\, g^{-1}\) is
- A \(2.85\)
- B \(11.4\)
- C \(5.7\)
- D \(22.8\)
Answer & Solution
Correct Answer
(D) \(22.8\)
Step-by-step Solution
Detailed explanation
\(\Delta {C_P} = \frac{{\Delta {H_2} - \Delta {H_1}}}{{{T_2} - {T_1}}}\)
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