Chemistry
Grade-9
Easy
Question
If the gas is heated at constant pressure. What happens to the density?
- Decreases
- Increases
- Remains unchanged
- Increases and then decreases
Hint:
At constant pressure density varies inversely with temperature.
The correct answer is: Increases
The density of a gas is directly proportional to its pressure and inversely proportional to its temperature. So, at constant pressure density varies inversely with temperature. Now if the temperature is increased at constant pressure, the density of the gas will decrease.
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