Heat & Thermodynamics Questions with Solutions

This topic covers heat and temperature, temperature scales and conversions, thermometers, thermal expansion, specific heat and latent heat, the transfer of heat by conduction, convection and radiation, and the basic laws of thermodynamics. Questions commonly ask about the temperature at which the Celsius and Fahrenheit scales read the same (-40 degrees), why water is used in car radiators (high specific heat), how heat reaches us from the Sun (radiation), and why we feel cold after sweating (cooling by evaporation). Practise converting between Celsius, Fahrenheit and Kelvin. Practise the heat and thermodynamics questions below, written in the style of the general awareness sections of exams such as SSC, banking, railways, CUET GAT, MAH CET and CLAT. Each question comes with a detailed explanation that adds related facts, so every question helps you revise more than one point.