Which of the following equations correctly expresses the temperature in kelvin (TTT) in terms of the temperature in degrees Celsius (θ\thetaθ)?
T=θ+273T = \theta + 273T=θ+273
T=θ−273T = \theta - 273T=θ−273
T=273−θT = 273 - \thetaT=273−θ
T=θ+373T = \theta + 373T=θ+373
321 exam-style questions on CIE IGCSE Physics 2.1 Kinetic particle model of matter, covering 2.1.1 States of matter and changes of state, 2.1.2a Particle structure and motion in solids, liquids and gases, 2.1.2b Gas pressure and particle collisions, 2.1.2c Brownian motion, 2.1.3a The absolute scale of temperature, and 2.1.3b Pressure, volume and temperature of a gas. Each one has a worked solution and a mark scheme showing where the marks go.