# A balloon filled with helium  $(32^{\circ}Cand 1.7atm)$ burst. immediately afterwards the expansion of helium can be consider as   Option: 1 Irreversible Isothermal Option: 2 Irreversible Adiabatic Option: 3 Reversible Adiabatic   Option: 4 Reversible Isothermal

Since process is very fast so, there will be no time to exchange heat between the system and the surroundings. SO this process is adiabatic.

Now when the gas comes out after bursting, a large amount of entropy will generate because the volume expansion is done in the ideal gas and since it is a free expansion, so temperature remain same. So it is irreversible.

So the Process is irreversible adiabatic.

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