whoisbrendonurie whoisbrendonurie

25-01-2017
Chemistry

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You place a balloon in a closed vacuum chamber at standard temperature and pressure (STP). You decrease the chamber temperature by half but keep the pressure constant. What happens to the balloon?

It doubles in volume.

It stays the same volume.

It expands to four times the original volume.

It reduces in size by half

If you do know the answer could you also explain it to me, please? I've gotten this on two quizzes and I pay attention to my lessons but I always get this one wrong.

Respuesta :

scme1702 scme1702

01-02-2017

It reduces in size by half.

This is due to Charles's law, which states that the absolute temperature and volume of a gas are directly proportional, given that pressure is kept constant. Therefore, if the absolute temperature is halved, the volume of the gas will also halve.

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