Question

Long Answer Type Questions
(a) Deduce a relation between enthalpy of a reaction at constant volume and
constant pressure.
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Answer 1

Answer:

Heat of reaction at constant pressure is enthaply.Q_{p} = \bigtriangleup H Heat of reaction at constant volume is internal energy. Q_{v} = \bigtriangleup Uwe know enthapy and internal energy relationship at const pressure as \bigtriangleup H = \bigtriangleup U +P\bigtriangleup V that is Q_{p} = Q_{v} + P\bigtriangleup V or it can also be written as Q_{p} = Q_{v} + nR\bigtriangleup T