The situation obtained when a perfect gas expands into a vacuum is

a

ΔH is positive and TΔ S is zero

b

ΔH is positive and T Δ S is negative

c

ΔH is negative and TΔ S is zero

d

ΔH is zero and T Δ S is positive

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Explanation

Correct Option
d

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Bt1
2 years ago

If an ideal gas or perfect gas
expands into vacuum, it does
no work
i.e, work done = 0
and this process is considered to
be an adiabatic process where q=0

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