A gas is heated. The pressure is kept constant. Which statement describes the behaviour of the particles in the gas?
A.
The particles move faster and become closer together.
B.
The particles move faster and become further apart.
C.
The particles move more slowly and become closer together.
D.
The particles move more slowly and become further apart.
Exam No：0620_s24_qp_21 Year：2024 Question No：1
Answer:
B
Knowledge points:
1.2.1. Describe and explain diffusion in terms of kinetic particle theory
1.2.2. Describe and explain the effect of relative molecular mass on the rate of diffusion of gases
Solution:
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