Question
Define coefficients of real and apparent expansions of a liquid. Give the relation between them.
Answer
Charles’ Law states that, at constant pressure, the volume of a fixed mass of gas is directly proportional to its absolute temperature.
The reason why pressure is kept constant in Charles’ Law is that the volume of a gas is highly dependent on the pressure it is subjected to. If the pressure were to change while the temperature remained constant, the volume would also change, making it difficult to establish a direct relationship between the two.
