All of the following options consist of various laws and statements. Among all the options, only one law and its statement is correctly written. Identify the correct option.
1
Joule’s law states that the volume of a given mass of a perfect gas varies inversely as the absolute pressure when temperature is constant.
2
Boyle’s law states that the specific internal energy of a gas depends only on the temperature of the gas and is independent of both, pressure and volume.
3
Charles’ law states that if any gas is heated at constant pressure, its volume changes directly as its absolute temperature.
4
Amagat’s law states that the pressure of a mixture of gases is equal to the sum of the partial pressures of the constituents.