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Difference between Internal Energy and Enthalpy

When a reacti...

Question

When a reaction is carried out in a closed vessel:

A

q_{P} < q_{V}

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B

q_{P} > q_{V}

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C

q_{P} = q_{V}

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D

q_{V} = 0

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Solution

The correct option is C $q_{P} = q_{V}$
When a reaction is carried out in a closed vessel, volume change is zero so
$Δ H = Δ U + P Δ V = Δ U$
$q_{P} = q_{V}$

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