Physics 0625 · IGCSE · Kinetic particle model of matter
Kinetic particle model of matter — practice question
A close-fitting lid traps air in a metal can. A liquid-in-glass thermometer passes through a hole in the lid and is sealed by an airtight rubber bung, as shown in Fig. 4.1.
(a(i))[1]
State what occurs to the liquid in the thermometer as the air temperature increases.
(a(ii))[2]
Calculate the temperature of the air in kelvin.
(b)[3]
State and explain what happens to the pressure exerted by the air in the can. Use your ideas about gas particles.
(c)[3]
Calculate the force on the lid due to the air in the can.
Worked solution & mark scheme
This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: “liquid (it) increases in volume” …