Question

Q.3
Which statement about particles in a liquid is correct?
A They all have the same speed.
B They are stationary.
C They move at random.
D They vibrate about a fixed point.
4
A gas is enclosed in a container of fixed volume.
The gas gains heat energy from an external source.
What happens to the molecules of the gas?
А
They expand.
B
They move faster inside the container.
С
They move further apart.
D
They vibrate with greater frequency.​

Answer 1

Answer:

4 A they expand

3. A they all have same speed..

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.. hope it's right