Chemistry - Thermodynamics - I Question with Solution | TestHub

ChemistryThermodynamics - IBasic terms in thermodynamicsEasy2 minQB
ChemistryEasymultiple choice

Δ U must be zero for

Options:(select one or more)

Answer:
A, C, D
Solution:

Free expansion into vacuum has q = 0, w = 0, so Δ U = 0. Isothermal change of an ideal gas keeps U fixed. U is a state function, so it is zero over a cycle. Melting ice absorbs latent heat and changes volume, so Δ U ≠ 0. Ans: (a), (c), (d).

Stream:JEESubject:ChemistryTopic:Thermodynamics - ISubtopic:Basic terms in thermodynamics
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