Question

an ideal gas is taken through a process as shown in the figure it absorbs and ages of energy during the process AV no heat is absorbed or rejected along the process BC and digits 140 jobs during the process CA during the process BC 60 of work is done on the gas internal energy of the gas is it 2000and the internal energy at sea is​

Answer 1

Answer:

option b is the correct

Explanation:

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11th

Physics

Thermodynamics

Heat, Internal Energy and Work

A sample of an ideal gas is...

PHYSICS

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Asked on December 30, 2019 by

Mehek Swrgy

A sample of an ideal gas is taken through the cyclic process ABCA shown in figure. It rejects 50J of heat during the part AB, does not absorb or reject the heat during BC, and accepts 70J of heat during CA. 40 joules of work is done on the gas during the part BC. The internal energies at B and C, respectively, will be (Internal Energy at A=1500Joules)

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ANSWER

A→B is an ischoric process

ΔW=0,ΔU=ΔQ,ΔU=−50J

U

A

−U

b

=50

⇒1500−V

B

=50

V

B

=1450J

Along BC,ΔQ=0

ΔW=−ΔU

ΔU=+40J

In V

C

−V

B

=40J

V

C

=V

B

+70

V

C

620 j