Physics for IGCSE & O level - Thermal Effects (Section 1 - No. 6)
What happens to the volume of a gas when heated at a constant pressure?
The volume increases.
The volume decreases.
The volume stays the same.
The volume fluctuates randomly.
स्पष्टीकरण
Heating a gas at constant pressure causes the volume to increase because the particles move faster and push outward.