What happens to the density of a gas when it is compressed at constant temperatu

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Question: What happens to the density of a gas when it is compressed at constant temperature?

Options:

Correct Answer: Increases

Solution:

According to the ideal gas law, compressing a gas at constant temperature increases its density.

What happens to the density of a gas when it is compressed at constant temperature?

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.

Ideal Gas Law – The relationship between pressure, volume, temperature, and the number of moles of a gas, expressed as PV = nRT.
Density of a Gas – Density is defined as mass per unit volume, and for gases, it can be affected by changes in pressure and volume.
Compression at Constant Temperature – When a gas is compressed while maintaining a constant temperature, its volume decreases, leading to an increase in density.