Zeroth, first and second laws of thermodynamics; thermodynamic processes; Carnot engine.
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Q1 · Thermodynamics · EASY
A system absorbs 200 J of heat and does 80 J of work. The change in internal energy is:
Q2 · Thermodynamics · EASY
A Carnot engine operates between 500 K and 300 K. Its efficiency is:
Q3 · Thermodynamics · MEDIUM
For an ideal gas undergoing an isothermal process:
Q4 · Thermodynamics · MEDIUM
An ideal gas is compressed adiabatically to half its original volume. During this process, which of the following statements is correct?
Q5 · Thermodynamics · EASY
A heat engine absorbs 600 J of heat from a hot reservoir and rejects 400 J to a cold reservoir. The efficiency of this engine is: