a
(a) If coefficient of volume expansion is \(\alpha \) and rise in temperature is \(\Delta \theta \) then \(\Delta V = V\alpha \Delta \theta \)==> \(\frac{{\Delta V}}{V} = \alpha \Delta \theta \)
Volume elasticity \(\beta = \frac{P}{{\Delta V/V}}\) \( = \frac{P}{{\alpha \Delta \theta }}\)==> \(\Delta \theta = \frac{P}{{\alpha \beta }}\)