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Which of the following is/are correct?

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a
ΔH=ΔU+Δ(PV) when P and V both changes
b
ΔH=ΔU+PΔV when pressure is constant
c
ΔH=ΔU+VΔP when volume is constant
d
ΔH=ΔV+PΔV+VΔP when P and V both changes 

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detailed solution

Correct option is A

For the relation,

ΔH=ΔV+PΔV+VΔP

Here, pressure is constant. So the option D has statement. Incorrect 

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