Thermodynamics

Class 11 · Physics

35 questions13 easy12 medium10 hard

Sample Questions

Q1.The efficiency of a Carnot engine can be 100% only if:

  • AThe source temperature is very high
  • BThe sink temperature is absolute zero
  • CThe working substance is an ideal gas
  • DThe process is very slow

Q2.A gas undergoes an isothermal expansion. Which of the following is true?

  • AInternal energy increases
  • BTemperature increases
  • CHeat is absorbed equal to work done
  • DNo heat exchange occurs

Q3.An ideal gas is compressed adiabatically from volume V to V/2. If γ = 5/3, the pressure increases by a factor of:

  • A2
  • B2^(5/3)
  • C2^(2/3)
  • D4

Q4.The Zeroth Law of Thermodynamics establishes the concept of:

  • AEntropy
  • BInternal energy
  • CTemperature
  • DWork done by a gas

Q5.In a PV diagram, the work done in an isothermal process between two volumes is compared to an adiabatic process between the same volumes. Which process does more work?

  • AAdiabatic
  • BIsothermal
  • CBoth do equal work
  • DDepends on the nature of gas

Q6.This is a sample question to preview what you'll get in the full practice test...

  • A. Option one
  • B. Option two
  • C. Option three
  • D. Option four
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Concepts Covered

Adiabatic ProcessCarnot EngineCp and CvFirst Law of ThermodynamicsInternal EnergyIsobaric ProcessIsochoric ProcessIsothermal ProcessSecond Law of ThermodynamicsThermodynamic ProcessesZeroth Law of Thermodynamics

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