Physics 0625 · IGCSE · Kinetic particle model of matter

Kinetic particle model of matter — practice question

(a)[2]

Explain, in terms of molecules, why a gas can be compressed, but a liquid cannot.

(b(i))[2]

Explain, in terms of molecules, why the temperature has fallen.

(b(ii))[2]

Predict which container cools at the greater rate. Explain your answer.

Worked solution & mark scheme

This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Gas molecules are widely spaced / lots of empty space” …

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI