The condition in which the change in enthalpy and change in internal energy will be equal has to be explained. Concept Introduction: At constant pressure, the exchange of heat between the system and surroundings is called as Enthalpy and its state function. Enthalpy can be given by the formula, H=U+PV For any process, the enthalpy change is given as, ΔH=ΔU+Δ(PV) If the pressure is held constant, ΔH=ΔU+PΔV Where, H=enthalpy ΔH = change in enthalpy U=internal energy P=Pressure V=Volume

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Chapter 10, Problem 10.28QP

Interpretation Introduction

Interpretation: The condition in which the change in enthalpy and change in internal energy will be equal has to be explained.

Concept Introduction:

At constant pressure, the exchange of heat between the system and surroundings is called as Enthalpy and its state function.

Enthalpy can be given by the formula,

H=U+PV

For any process, the enthalpy change is given as,

ΔH=ΔU+Δ(PV)

If the pressure is held constant,

ΔH=ΔU+PΔV

Where, H=enthalpy

ΔH= change in enthalpy

U=internal energy

P=Pressure

V=Volume

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