Question

question
the volume of a gas sample is observed to have decreased, even though the pressure remained constant. this indicates that:
select the correct answer below:
the temperature increased
the temperature stayed the same
the temperature decreased
the temperature fluctuated

Explanation:

According to Charles's Law ($V\propto T$ at constant pressure), when pressure is constant, volume and temperature of a gas are directly proportional. If volume ($V$) decreases, temperature ($T$) must also decrease.

Answer:

The temperature decreased