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Edexcel IGCSE Physics · Spec 5.19-5.21

Gas Pressure and Kelvin Temperature

Covers link kinetic energy to Kelvin temperature, Use p1/T1 = p2/T2 and Convert Celsius to kelvin correctly.

Physics revision video

Gas Pressure and Kelvin Temperature

Spec 5.19-5.21

What you need to know

  • Link kinetic energy to Kelvin temperature
  • Use p1/T1 = p2/T2
  • Convert Celsius to kelvin correctly

Active recall

Quick check

Answer each question before opening the answer.

What temperature scale must gas laws use?

Kelvin

State the fixed-volume pressure law

p1/T1 = p2/T2

Convert 47 degrees C to kelvin

320 K

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