Physics · Oct / Nov 2022 · Paper 42 · Question 4
0625
As printed in the paper
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4(a)[3]
any three from:
moving particles have momentum OR particles hit wallsmomentum changes when particles hit wallsforce exerted (by particles) due to (rate of) change of momentumpressure is (total) force (of particles) per unit area (of wall).4(b)[2]
pressure increases
(there is a) greater change of momentum OR (particles exert) greater force (on same area) OR particles move faster OR particles have more KE
4(c)[3]
(pressure =) 1.5 × 105 Pa
p1 V1 = p2 V2 OR (p2 =) p1 V1 /V2 OR pV = constant (for fixed m, fixed T)
C1 (p2 =) 9(.0) × 104 × 170 / 100
C1
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