Home
Class 11
CHEMISTRY
The electron gain enthalpy of chlorine 3...

The electron gain enthalpy of chlorine `3.7 eV`. How much energy in `kJ` and `kcal` is released when `1 g` of chlorine is converted completely to `Cl^(o-)` ion in the gaseous state. `(1 eV = 96.3 kJ mol^(-1))`

Text Solution

Verified by Experts

The electron gain enthalpy in `kJ` is represented as
`Cl_((g)) + e^(-) rarr Cl_((g))^(ɵ) + 3.7 eV`
Now, `1 eV atom^(-1) = 96.3 kJ mol^(-1)`
`:. 3.7 eV = 3.7 eV xx 96.3 kJ mol^(-1)`
Energy released when `35.5 g (1 "mole")` of chlorine is completely converted to `Cl_((g))^(ɵ)` ion `= 3.7 xx 96.3 kJ`
Energy released when `1 g` of chlorine is completely converted to `Cl_((g))^(ɵ)` ion `= (3.7 xx 96.3)/(35.5) = 10.04 kJ`
b. `Delta_(eg)H^(ɵ)` in kcal
`(1 eV = 23.06 kcal mol^(-1))`
`:. Delta_(eg)H^(ɵ) = (3.7 xx 23.06)/(35.5) = 2.4 kcal`
Promotional Banner

Topper's Solved these Questions

  • PERIODIC CLASSIFICATION OF ELEMENTS AND GENERAL INORGANIC CHEMISTRY

    CENGAGE CHEMISTRY|Exercise Solved Examples|34 Videos

  • PERIODIC CLASSIFICATION OF ELEMENTS AND GENERAL INORGANIC CHEMISTRY

    CENGAGE CHEMISTRY|Exercise Ex 1.1|14 Videos

  • P-BLOCK GROUP 14 - CARBON FAMILY

    CENGAGE CHEMISTRY|Exercise Exercises Archives (Subjective)|9 Videos

  • PURIFICATION OF ORGANIC COMPOUNDS AND QUALITATIVE AND QUANTITATIVE ANALYSIS

    CENGAGE CHEMISTRY|Exercise Assertion Reasoning Type|5 Videos

Similar Questions

Explore conceptually related problems

The electron gain enthalpy of chlorine is –349 kJ mol^(–1) . How much energy in kJ is released when 3.55 g of chlorine is converted completely into Cl^(–1) ion in the gaseous state?

The elecron affinity of chlorine is 3. 7 eV . How much energy in kcal is released when 2g chlorine is completely converted to cl^- ion in a gaseous state ? (1 eV = 23. 06 kcal "mol"^(-10)) .

The electron affinity of chlorine is 3.93v. How much energy in Kcal is released when 2g of chlorine is completely converted to Cl^(-) ion in gaseous state ? (1eV = 23.06 Kcal " mol"^(-1))

The electron affinity of bromine (g) is 3.9 eV. How much energy in kJ is released when 10.0 g of bromine is converted completely to Br- in gaseous state? [Given. Atomic mass of Br = 80, 1 eV = 96.3 kJ "mol"^(-1) ].

The electron affinity of a hypothetical element 'A' is 3eV per atom. How much energy in kcal is released when 10g of 'A' is completely converted of A^(-) ion in a gaseous state ? (1 eV=23" kcal mol"^(-1) , Molar mass of A=30g)

The Delta_(eg)H^(ɵ) of Br is 3.4 eV . How much energy in kcal is released when 0.8 g of Br (g) is completely converted to Br^(ɵ) (g) ions. (1 eV = 23.06 kcal mol^(1-)) b. The energy released when 10^(7) atoms of I (g) is converted to I^(ɵ) (g) ions, is 5 xx 10^(-13) J . Calculate Delta_(eg)H^(ɵ) of I (g) in (i) eV "atom"^(-1) and (ii) kJ mol^(-1) .