Q.

A balloon filled with helium ( 32°C and 1.7 atm.) bursts. Immediately afterwards the expansion of helium can be considered as:

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a

Irreversible adiabatic

b

Reversible isothermal

c

Irreversible isothermal

d

Reversible adiabatic

answer is B.

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Detailed Solution

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Bursting of helium balloon is irreversible and, in this process,  ΔQ=0, so adiabatic.

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