#### Question

Write brief answers.

Explain with the help of formulae the expansion coefficients of liquid and gas.

#### Solution

The formula for liquid expansion or gas is

V_{2} = V_{1} (1 + β Δ T)

or

β = `(("V"_2 - "V_1")/"V"_1) 1/ (triangle T)`

From the above formula, we can say that

- the volumetric expansion coefficient of a liquid (β) is defined as the fractional change in the volume of the liquid per degree Celsius (or kelvin) change in temperature.
- the volumetric expansion coefficient of a liquid (β) is defined as the fractional change in the volume of the gas per degree Celcius (or kelvin) change in temperature at constant pressure. So, β is the constant pressure volumetric expansion coefficient in case of gas.

Is there an error in this question or solution?

Solution Write Brief Answers. Concept: Expansion of Liquids.