Enthalpy of sublimation of iodine is 24 cal g–1 at 200°C. If specific heat of I2(s) and I2(vap) are 0.055 and 0.031 cal g–1K–1 respectively, then enthalpy of sublimation of iodine at 250°C in cal g

Engineering

Chemistry

Enthalpy of Fusion Vaporisation and Sublimation

Question

Enthalpy of sublimation of iodine is 24 cal g^–1 at 200°C. If specific heat of I₂(s) and I₂(vap) are 0.055 and 0.031 cal g^–1K^–1 respectively, then enthalpy of sublimation of iodine at 250°C in cal g^–1 is :

11.4

5.7

28.5

22.8

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${ΔC}_{P} = \frac{{ΔH}_{2} - {ΔH}_{1}}{T_{2} - T_{1}}$