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A mixture of 2 moles of carbon monoxide ...

A mixture of 2 moles of carbon monoxide and one mole of oxygen in a closed vessel is ignited to get carbon dioxide. If `Delta H` is the enthalpy change and `Delta E` is the change in internal energy, then :-

A

`Delta H gt Delta E`

B

`Delta H lt Delta E`

C

`Delta H = Delta E`

D

The relationship depends on the capacity of the vessel

Text Solution

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The correct Answer is:
B
Formation of `CO_(2)` from CO is an exothermic reaction, heat is evolved from the system, i.e., energy is lowered. Thus, exothermic reactions occur spontaneously on account of decrease in enthalpy of system. Thus, `Delta E gt Delta H`
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