A gas sample is collected in a balloon. What happens to the density of the gas sample as the sample is heated?
A)decreases
B)increases
C)does not change
D)a variable change occurs

Question

Quizplus · Accepted Answer

When a gas sample is heated, its volume increases if the pressure and the amount of gas remain constant (according to Charles's law). Since density is mass per unit volume and the mass of the gas doesn't change, an increase in volume leads to a decrease in density.

A Gas Sample Is Collected in a Balloon