A packet of potato snack is brought aboard an aeroplane. As the aircraft flies, the pressure inside the cabin changes and the packet of potato snack alters its shape, as shown in Fig. 5.1. The packet carries the label 'POTATO SNACK'. One picture is labelled potato snack packet before flight and the other potato snack packet during flight.
(a)[2]
Explain why the packet changes shape. In your response, refer to the gas molecules inside and outside the packet.
(b)[2]
State two factors that determine the size of the increased pressure.
(c(i))[1]
State the name of the device in Fig. 5.2.
(c(ii))[3]
Determine the pressure of the gas supply.
Worked solution & mark scheme
This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Gas particles hit the walls more frequently” …