Home
Class 11
CHEMISTRY
The enthalpy of formation of gaseous iod...

The enthalpy of formation of gaseous iodine is `62.5 kJ "mol"^(-1)`. What is the enthalpy of sublimation of iodine at `25^(@)C`?

Text Solution

Verified by Experts

By definition of enthalpy of formation, `I_(2) (s) rarr I_(2)(g) ,Delta_(f) H = 62.5 kJ mol^(-1)`
This is also the enthalpy ofsublimation by definition.
Hence, `Delta_(f) H(I_(2),g) =Delta_("sub")H(I_(2),s)`.
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    PRADEEP|Exercise NCERT QUESTIONS AND EXERCISES WITH ANSWERS|22 Videos

  • THERMODYNAMICS

    PRADEEP|Exercise NCERT SUPPLEMENTARY EXERCISE|6 Videos

  • THERMODYNAMICS

    PRADEEP|Exercise CONCEPTUAL QUESTIONS( II. First law of thermodynamics)|1 Videos

  • STRUCTURE OF ATOM

    PRADEEP|Exercise Competition Focus (JEE (Main and Advanced)/Medical Entrance (IX. Assertion And Reason Type Questions (Type II))|12 Videos

Similar Questions

Explore conceptually related problems

The bond dissociation energies for Cl_(2) , I_(2) and IC l are 242.3 , 151.0 and 211.3 kJ//"mole" respectively. The enthalpy of sublimation of iodine is 62.8 kJ //"mole" . What is the standard enthalpy of formation of ICI(g) nearly equal to

If enthalpy of fusion and enthalpy of vaporisation of sodium metal are 2.6 and 98.2 kJ "mol"^(-1) respectively, what is the enthalpy of sublimation of sodium?

The enthalpy of formation of H_(2)O(l) is -285 KJ mol^(-1) and enthalpy of neutralization of a stron acid and a strong bas is -55 KJ mol^(-1) . What is the enthalpy of formation of OH^(-) ions?

At 298 K, the enthalpy of fusion of a solid (X) is 2 . 8 kj mol^(-1) and the enthalpy of vaporisation of the liquid (X) is 98.2 kJ mol^(-1) The enthalpy of sublimation of the substance (X) in kj mol^(-1) is _______(in nearest integer)

Bond dissociation enthalpies of H_(2(g)) and N_(2(g)) are "426.0 kJ mol"^(-1) and "941.8 kJ mol"^(-1) , respectively, and enthalpy of formation of NH_(3(g))" is "-"46 kJ mol"^(-1) . What are the enthalpy of atomisation of NH_(3(g)) and the average bond enthalpy of N-H bond respectively ( in kJ "mol"^(-1) )?

The enthalpy of neutralisation of a strong acid by a string base is -57.32 kJ mol^(-1) . The enthalpy of formation of water is -285.84 kJ mol^(-1) . The enthalpy of formation of hydroxy 1 ion is

The enthalpy of formation of H_(2)O(l) is -280.70 kJ/mol and enthalpy of neutralisation of a strong acid and strong base is -56.70 kJ/mol. What is the enthalpy of formation of OH^(-) ions?

The standard enthalpy of formation of NH_(3) is -46.0 kJ mol^(-1) . If the enthalpy of formation of H_(2) from its atoms is -436 kJ mol^(-1) and that of N_(2) is -7112kJ mol^(-1) , the average bond enthalpy of N-H bond in NH_(3) is :-