Thermal expansion; calorimetry, latent heat; heat conduction; convection and radiation; ideal gas laws; specific heats; thermodynamic processes; Carnot engine; blackbody radiation.
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Q1 · Thermal Physics · MEDIUM
An ideal gas undergoes a cyclic process ABCA where AB is isothermal expansion at temperature T₁ = 600 K, BC is isobaric compression, and CA is isochoric heating. If the efficiency of the cycle is 20%, what is the temperature at state C?
Q2 · Thermal Physics · MEDIUM
A Carnot engine operates between a hot reservoir at 900 K and a cold reservoir. If the efficiency of the engine is 45%, it extracts 240 J of heat per cycle from the hot reservoir. The heat rejected to the cold reservoir per cycle is: