DieselShip's Online Content Library

Q1. A gas in a cylinder is heated at constant pressure from a temperature of 387°C to 568°C and then cooled at constant volume to 427°C.

The change in specific entropy in the first process is 0.182 kJ/kgK.

After the cool processes the gas expands isentropically to 5 times V1 and a temperature of 17°C.

(a) Sketch PV and Ts diagrams to show the process.

(b) Calculate EACH of the following:

(i) C_v, C_P and y;

(ii) the change in specific entropy in the constant volume process;

(iii) the specific heat in the constant pressure process.