What happens to the density of a gas when it is compressed at constant temperatu
Practice Questions
Q1
What happens to the density of a gas when it is compressed at constant temperature?
Increases
Decreases
Remains constant
Becomes zero
Questions & Step-by-Step Solutions
What happens to the density of a gas when it is compressed at constant temperature?
Correct Answer: Density increases.
Step 1: Understand what density means. Density is how much mass is in a certain volume. It is calculated by dividing mass by volume (Density = Mass/Volume).
Step 2: Know that when we compress a gas, we are reducing its volume while keeping the amount of gas (mass) the same.
Step 3: Since the mass of the gas does not change during compression, but the volume decreases, the density must increase.
Step 4: Remember that this process happens at constant temperature, meaning the gas does not lose or gain heat during compression.
Step 5: Conclude that when a gas is compressed at constant temperature, its density increases because the same mass occupies a smaller volume.
