A gas is placed in a container with a moveable piston. It is then cooled down at constant pressure. What happens? Explain.

The piston will move down

Explanation:

We can solve this problem by using Charle's Law, which states that:

"For a fixed mass of an ideal gas kept at constant pressure, the volume of the gas is directly proportional to the absolute temperature of the gas"

Mathematically:

where

V is the volume of the gas

T is the absolute temperature of the gas

In this problem, we have a gas placed in a container with a moveable piston. We are also told that the gas is kept at constant pressure, so we can apply Charle's Law.

We are told that the gas is cooled down: this means that its absolute temperature decreases. Therefore, according to Charle's Law, this means that the volume of the gas also decreases: therefore, the piston of the container will move down.

the answer is yes

it has kinetic energy

reason

an object has kinetic energy when you stop the force carrying it, the object will stay in motion.

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