Physics 9702: THERMAL PROPERTIES OF MATERIALS Topical Past Paper Questions

(a) State the first law of thermodynamics. [2] (b) A sample of an ideal gas contains $ 3.58 \times 10^{24} $ molecules. The sample is at a temperature of 298K and a pressure of $ 1.84 \times 10^{5} $ Pa. (i) Show that the volume of the gas is $ 0.0800 \, m^{3} $. [2] (ii) Calcula…

(a) With reference to molecular kinetic energy and molecular potential energy, explain what is meant by the internal energy of an ideal gas. [2] (b) A sample of an ideal gas is initially in state A, at a pressure of $ 2.0 \times 10^{5} $ Pa and with a volume of $ 0.016 \, m^{3} $…

(a) Define specific heat capacity. [2] (b) Two solid blocks X and Y are made from different metals. The blocks have different initial temperatures. Block Y is initially at room temperature. The blocks are placed in direct thermal contact with each other at time t = 0. Fig. 2.1 sh…