(a)[2]
A resistance thermometer and a thermocouple thermometer are both used at the same time to measure the temperature of a water bath. Explain why, even though both thermometers have been correctly calibrated and are in equilibrium, they may give different temperatures.
(b(i))[1]
State how the absolute scale of temperature differs from other temperature scales.
(b(ii))[1]
State what is meant by the absolute zero of temperature.
(c(i))[1]
The temperature of a water bath rises from $50.00^{\circ}\text{C}$ to $80.00^{\circ}\text{C}$. Determine, in kelvin and to an appropriate number of significant figures, the temperature $50.00^{\circ}\text{C}$.
(c(ii))[1]
Determine, in kelvin and to an appropriate number of significant figures, the change in temperature of the water bath.