Temperature

You will be able to

• Explain that two objects in thermal equilibrium are at the same temperature and have no net transfer of thermal energy between them.
• Convert between the Celsius and thermodynamic (kelvin) scales using T / K = θ / °C + 273.15.
• Explain why thermometers based on different physical properties agree at the fixed points but may disagree between them.

You will be able to

• Determine the specific heat capacity of a solid or liquid from the gradient of a temperature–time graph, c = P / (m × gradient).
• Explain why heat lost to the surroundings makes the measured specific heat capacity too large.
• Determine the specific latent heat of vaporisation of water using two heater powers to eliminate the heat loss.