ABSTRACT

The relationships that exist between pressure, volume and temperature in a gas are given in a set of laws called the gas laws, the most fundamental being those of Boyle, Charles, and the pressure or Gay-Lussac’s law, together with Dalton’s law of partial pressures and the characteristic gas equation. These laws are used for all sorts of practical applications, including for designing pressure vessels, in the form of circular cylinders and spheres, which are used for storing and transporting gases. The chapter discusses calculations involving Boyle’s law and aims to understand the term isothermal and calculations involving Charles’ law. It also aims to understand the term isobaric and examines calculations involving the pressure or Gay-Lussac law and explores calculations on Dalton’s law of partial pressures. Gas initially at a temperature of 17°C and pressure 150 kPa is heated at constant volume until its temperature is 124°C.