Enthalpy change for the reaction, `4H(g)to2H_(2)(g)` is -869.5 kJ. The dissociation energy of H-H bonds is

Question

Enthalpy change for the reaction, `4H(g)to2H_(2)(g)` is -869.5 kJ. The dissociation energy of H-H bonds is

Enthalpy change for the reaction,
`4H(g)to2H_(2)(g)` is -869.5 kJ.
The dissociation energy of H-H bonds is
A. `+217.4kJ`
B. `-434.8kJ`
C. `-869.6kJ`
D. `+434.8kJ`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Related Questions

Enthalpy change for the reaction `2N_((g))+6H_((g))to2NH_(3(g))is-900 KJ` The dissociation energy of N - H bond is

2 Answers 4 Views

क्या नाभिकीय अभिक्रियाओं के समीकरण रासायनिक समीकरण (उदाहरण के लिए `2H_(2)+O_(2)to2H_(2)O`) के रूप में संतुलित है ? यदि नहीं तो किस रूप में दोनों ओर सम

2 Answers 4 Views

The molar conductivity of `0.025mol L^(-1)` methanoic acid is `46.1 S cm^(2)mol ^(-1).` Calculate its degree of dissociation and dissociation constant

2 Answers 5 Views

The decreasing order of bond dissociation energies of C-C,C-H and H-H bonds is

2 Answers 4 Views

Calculate the enthalpy of vaporisation of `I_(2)` if the sublimation energy and enthalpy of fusion of `I_(2)` is 57.3 kJ `mol^(-1)` and 15.5 kJ `mol^(

2 Answers 4 Views

Identify the equation in which change in enthalpy is equal to change in internal energy

2 Answers 4 Views

Bond dissociation enthalpy of E-H(E= element ) bonds is given below. Which of the compounds will act as strongest reducing agent `{:("Compound",NH_(3)

2 Answers 4 Views

A salt is formed when a weak acid of dissociation constant `10^(-4)` and weak base of dissociation constant `10^(-5)` are mixed. The pH and degree of

2 Answers 6 Views

The molar enthalpy change for `H_(2)O(l)hArrH_(2)O(g)` at 373 K and 1 atm ius 41 kJ/mol. Assume ideal behaviour, the internal energy change for vapori

2 Answers 4 Views

For an exothermic reaction an activation energy of 70 KJ `"mole " ^(-1 ) ` and the enthalpy change of reaction is 30 KJ ` "mole " ^(-1) ` . The order

2 Answers 5 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - D
The dissociation energy of H-H bond is
`=(869.6)/(2)=+434.8kJ`

4 views Answered 2023-02-05 15:29