Think you’ve got your head wrapped around Thermodynamics? Put your knowledge to
the test. Good luck — the Stickman is counting on you!
Q. The Carnot Cycle consists of ______________.
Step 1: isothermal expansion, Step 2: adiabatic expansion, Step 3: isothermal compression, Step 4: adiabatic compression
Step 1: isobaric expansion, Step 2: adiabatic expansion, Step 3: isothermal compression, Step 4: adiabatic compression
Step 1: isobaric expansion, Step 2: adiabatic expansion, Step 3: isobaric compression, Step 4: adiabatic compression
Step 1: isobaric expansion, Step 2: adiabatic compression, Step 3: isothermal compression, Step 4: adiabatic compression
Step 1: isothermal expansion, Step 2: adiabatic expansion Step 3: isothermal expansion, Step 4: adiabatic expansion
Q. There is no change in the internal energy of a system during ______________.
an adiabatic expansion
an isothermal expansion
an isobaric expansion
an isovolumetric process
no processes (i.e., there is always a change in the internal energy)
Q. The highest efficiency at which a heat engine can operate is ______________.
100%
the heat efficiency
the thermal efficiency
the engine efficiency
the Carnot efficiency
Q. In a cyclic, thermal process where the volume and pressure of the system return to their original values, ______________.
there is no change in internal energy
there is an increase in internal energy
there is a decrease in internal energy
nothing can be said about the change in internal energy based on the information given.
the temperature of the system remains the same
Q. In which of these processes is no work done?
An adiabatic process
An isovolumetric process
An isobaric process
An isothermal process
Whaddaya mean, no work? Work is always done.
Q. The first law of thermodynamics states that ______________.
the entropy of the universe always increases
no heat engine is 100% efficient
energy is conserved
heat always flows from a low temperature reservoir to a high temperature reservoir
disorder always decreases in a spontaneous process
Q. The Carnot efficiency of a heat engine depends on ______________.
the temperature of the hot and the cold reservoirs only
the temperature of the hot and cold reservoir and the amount of heat transferred
the amount of heat drawn from the hot reservoir only
the amount of heat drawn from the hot reservoir, the amount of heat deposited in the cold reservoir, and the amount of work done by the system
the amount of work done by the system only
Q. How much work is done during the isobaric expansion of an ideal gas, if the volume is increased from 2 × 10-3 m3 to 15 × 10-3 m3 at a pressure of 1.3 × 105 Pa?
No work is done during an isobaric expansion.
-2210 J
-1690 J
1690 J
2210 J
Q. Carnot's principle states that ______________.
the most efficient engine is one that is irreversible
heat always flows from the cold to the hot reservoir of a heat engine to do work
heat always flows from the hot to the cold reservoir of a heat engine to do work
energy is conserved
the most efficient engine is one that is reversible
Q. Two thermodynamic cycles start and end at the same pressure and volume. What can we say about these processes?
The change in internal energy for both processes is the same.
The change in internal energy and the work done during both processes is the same.
The heat put into the system to complete both cycles is the same.
No work is done in either of these processes.
No heat is exchanged in either process.