Thermodynamics-Thermal Equilibrium (NEET Physics): Questions 15 - 16 of 16

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Question number: 15

» Thermodynamics » Thermal Equilibrium

MCQ▾

Question

Two Carnot engines A and B are operated in succession. The first one, A receives heat from a source at r 1 = 500 and rejects to sink at T 2 K. The second engine B receives heat rejected by the first engine and rejects to another sink at r 3 =300K. If the work outputs of two engines are equal, then the value of T 2 will be

Choices

Choice (4) Response

a.

550K

b.

400K

c.

100K

d.

700 K

Question number: 16

» Thermodynamics » Thermal Equilibrium

MCQ▾

Question

For free expansion of the gas which of the following is true

Choices

Choice (4) Response

a.

Q=0,W>0andEint=W

b.

W>0,Q<0andEint=0

c.

W=0,Q>0,andEint=Q

d.

Q = W = 0 a n d ∆ E i n t = 0

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