Thermodynamics-Thermodynamic Processes (KVPY Stream SB-SX (Class 12 & 1st Year BSC) Physics): Questions 1 - 3 of 3

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Question number: 1

» Thermodynamics » Thermodynamic Processes

MCQ▾

Question

1 g mole of an ideal gas at STP is subjected to a reversible adiabatic expansion to double its volume. Find the change in internal energy (γ=1.4) .

Choices

Choice (4) Response

a.

1169.5 J

b.

969.5 J

c.

1069.72 J

d.

849.28 J

Question number: 2

» Thermodynamics » Thermodynamic Processes

Appeared in Year: 2015

MCQ▾

Question

The state of an ideal gas was changed isobarically. The graph depicts three such isobaric lines. Which of the following is true about the pressures of the gas?

Graph of isobaric processes

Graph of Isobaric Processes

The state of an ideal gas was changed isobarically. In figure graph depicts three such isobaric lines.

Choices

Choice (4) Response

a.

P1P2=P3P1

b.

P1>P2>P3

c.

P1=P2=P3

d.

P1<P2<P3

Question number: 3

» Thermodynamics » Thermodynamic Processes

MCQ▾

Question

The work required to compress adiabatically 2 g of air initially at NTP to 13 of its volume. Density of air at NTP = 0.00129 gcm-3 and CPCV=1.4 .

Choices

Choice (4) Response

a.

-108.54 J

b.

108.54 J

c.

54.27J

d.

-54.27 J

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