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WorksheetsQuiz 1- Process Thermodynamics
Total questions: 10
Worksheet time: 10mins
Which law of thermodynamics says that the efficiency of a heat engine cannot be 1?
First
Zeroth
Second
Third
Which of the following is the Kelvin-Planck statement?
Heat from a cold reservoir cannot be transferred to a hot reservoir without external work.
Efficiency for a reversible cyclic process can be 1.
The heat from a hot reservoir can be converted entirely into work if reversible.
The efficiency of a heat engine is less than 1.
The second law of thermodynamics states that
The entropy of an isolated system can never decrease over time.
The entropy of a pure crystalline substance at 0K is 0.
Energy is conserved
The entropy of a system can never decrease
What is its efficiency if an engine takes 5 J of heat energy from a reservoir and rejects 3 J to the surroundings?
2/5
3/5
1/5
0
What is the coefficient of performance of a refrigerator? Let Q1 be the heat released to the hot reservoir, Q2 be the heat extracted from a cold reservoir, and W be the work done on the refrigerator.
Q1/W
Q1/Q2
Q2/W
Q2/Q1
Select the correct order of steps a working substance (gas) goes through in a refrigerator.
Expansion of gas, absorption of heat, heating of vapour, release of heat
Absorption of heat, expansion of gas, heating of vapour, release of heat
Heating of vapour, expansion of gas, absorption of heat, release of heat
Heating of vapour, absorption of heat, expansion of gas, release of heat
What is the correct order of steps for a Carnot cycle?
Isothermal expansion, adiabatic expansion, isothermal compression, adiabatic compression
Isothermal compression, adiabatic expansion, isothermal expansion, adiabatic compression
Adiabatic compression, adiabatic expansion, isothermal expansion, isothermal compression
Adiabatic compression, isothermal expansion, adiabatic expansion, and isothermal compression
Carnot engine follows ____________
Isothermal process
Isoentropic process
Isothermal and Isoentropic process
None of the mentioned
Clausius inequality is applied at ____________.
reversible isothermal heat addition
reversible adiabatic expansion
reversible isothermal compression
reversible isothermal heat rejection
The working fluid of the Rankine cycle is usually
Water
Methane
Hard water
None of the mentioned
