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The heat enegry required to ionise the f...

The heat enegry required to ionise the following molecules is given as follows:
`N_(2)(g) overset(DeltaH_(1))rarr N_(2)^(o+(g),O_(2)(g) overset(DeltaH_(2))rarrO_(2)^(o+(g)`
`Li_(2)(g) overset(DeltaH_(3))rarrLi_(2)^(o+(g),C_(2)(g) overset(DeltaH_(4))rarrC_(2)^(o+(g)`
Arrange the heat terms in decreasing order of enegry:

A

`DeltaH_(1) gt DeltaH_(3) gt DeltaH_(2) gt DeltaH_(4)`

B

`DeltaH_(2) gt DeltaH_(3) gt DeltaH_(1) gt DeltaH_(4)`

C

`DeltaH_(3) gt DeltaH_(4) gt DeltaH_(1) gt DeltaH_(2)`

D

`DeltaH_(3) gt DeltaH_(1) gt DeltaH_(4) gt DeltaH_(2)`

Text Solution

Verified by Experts

Enthalpy of ionisation depends upon the size of molecules. Larger the size lesser will be ionisation energy.
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