Gas is contained in a syringe by a piston, while the narrow end of the syringe is sealed, as illustrated in Fig. 5.1. When the gas is at a pressure of $1.1 \times 10^{5}\,\text{Pa}$, it has a volume of $40\,\text{cm}^3$.
(a)[3]
Explain, in terms of the molecules, how the gas produces a pressure on the inside of the syringe.
(b)[2]
The piston is slowly drawn to the right until the gas occupies $110\,\text{cm}^3$. The temperature of the gas stays the same. Calculate the new pressure of the gas.
Worked solution & mark scheme
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Particles remain in continuous random motion” …