Question

In an experiment, a scientist found that as she increased the temperature of a gas while holding the pressure and mass constant, the volume of the gas increased in direct proportion to the increase in temperature. What was the independent variable in this experiment?

A) area B) mass C) pressure D) temperature

Answer 1

The independent variable is the variable that stays the same. So, the independent variable would be the pressure. 
C. pressure

I hope this helps!

Answer 2

Answer:

Temperature

Step-by-step explanation:

it told me this was the answer when I got it wrong