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Under which of the following condition i...

Under which of the following condition is the relation `DeltaH = DeltaU +P DeltaV` valid for a closed system at

A

Constant temperature, pressrure , and composition

B

Constant temperature and pressure

C

Constant pressure

D

Constant temperature

Text Solution

Verified by Experts

The correct Answer is:
C

According to thermodynamics,
`H = U + PV`
`:. Delta H = Delta U + Delta (pV)`
`= Delta U + p Delta V + V Delta p + Delta p Delta V`
If `Delta p = 0` (constant pressure), than
`Delta H = Delta U + p Delta V`
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Knowledge Check

  • Under which of the following conditionis the relation DeltaH = DeltaE+ P DeltaH valid for a closed system?

    A
    constant pressure
    B
    constant temperature
    C
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    D
    constant temperature, pressure and composition
  • Under which of the following conditions is the relation, Delta H = Delta E + P Delta V valid for a system :-

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    C
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    D
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