During an adiabatic expansion of an ideal gas, which stays constant? a) U b) H c) S Internal Energy stays...

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Chemistry

During an adiabatic expansion of an ideal gas, which staysconstant?

a) U

b) H

c) S

Internal Energy stays constant?

Which one of the following is true?

a) The entropy of an isolated system can only stay constant orincrease during a process

b) We can construct a heat engine that extracts heat from a hotreservoir and delivers an equal amount of work

c) We can construct a refrigerator whose sole effect is totransfer heat from a cooler object to a hotter one

Entropy of isolated system stays constant?

Thank you!

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3.7 Ratings (401 Votes)
1Correct answer S entropy In Adiabatic Expansion system isolated from surrounding which means there is not exchange of heat from surrounding that means dq0 U Internal Energy according to first law of thermodynamics U q w here q change    See Answer
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