Edexcel IGCSE Physics 5.17 Kelvin Scale Questions

Apply the temperature-scale conversion to gas, water and steam examples, keeping the expected precision.

Exam points

Convert Celsius to kelvin by adding 273; use 273.15 where the question’s precision requires it.
Give the converted temperature in kelvin (K) and use precision appropriate to the question.

[Maximum number: 1]

A student uses a computer simulation to investigate the motion of particles in a gas.
He records the pressure of the gas and the mean speed of the particles in the gas at different temperatures.

The graphs show his results.

Graph 1

Graph 2

The student then calculates the kinetic energy of a single gas particle at each temperature.

Calculate the temperature of the gas in kelvin when its temperature is 100 degrees C.

temperature = ............ K

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Edexcel IGCSE Physics 5.17 Kelvin Scale Questions question 1