Question

material having the highest coefficient of volume expansion

Answer 1

the coefficient of volume expansion of a gas at constant pressure is defined as the fraction of its volume at 0 degree Celsius by which the volume of a fixed mass of gas expand per degree Celsius rise in temperature

Answer 2

Hey dear,
This specific question is supposed to have options.

Options are -
(a) iron
(b) mercury
(c) brass
(d) hard rubber

● Answer -
(d) hard rubber

● Coefficient of volume expansion -
- It is the fraction of volume at 0°C by which the volume of a fixed mass of material expands per degree Celsius rise in temperature.

● Explaination -
Coefficient of volume expansion for given materials are -
- iron => 3.55×10^-5
- mercury => 18.2×10^-5
- brass => 6×10^-5
- hard rubber => 24×10^-5


This clearly shows coefficient of volume expansion is highest for hard rubber.

Hope this helps you...