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Arrhenius Equation

In Born-Haber...

Question

In Born-Haber cycle, the sum of the enthalpy changes around a cycle is

A

Constant

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B

Zero

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C

Negative integer

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D

Positive integer

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Solution

The correct option is B
Zero

The Born-Haber cycle, is based on Hess Law or Law of constant heat summation which states that the standard enthalpy of reaction is the sum of algebraic sum of the standard enthalpies of reactions into which the overall reaction may be splitted. So the change in enthalpy around a cycle is zero.

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Q. Assertion: Born Haber cycle is based on Hess's law.
Reason: Lattice enthalpy can be calculate by Born- Haber cycle.

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Q. Which of the following law is applied in Born Haber Cycle?

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