MCQ
When we cool a gas below its condensation point, the $K.E.$ of its molecules:
- AIncreases
- ✓Decreases
- CRemains the same
- DFirst decreases then increases
✓
Answer
Correct option: B.
Decreases
As we know kinetic energy of molecules of a gas is a function of Temperature
So, As we decrease its temperature or say cool it, its kinetic energy gradually decrease.
At a certain point which decreasing kinetic energy it starts bonding up whit molecules and thus condensation starts.
So, As we decrease its temperature or say cool it, its kinetic energy gradually decrease.
At a certain point which decreasing kinetic energy it starts bonding up whit molecules and thus condensation starts.
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