Question

Which law states that the volume and absolute temperature of a fixed quantity of gas are directly proportional under constant pressure conditions?
Boyle’s law
Charles’s law
Dalton’s law
Gay-Lussac’s law

Answer 1

Hello!

The answer is: Charle's Law.

Why?

The law that states that the volume and absolute temperature of a fixed quantity of gas (ideal gas) are proportional under constant pressure is the Charle's Law, also known as the law of volumes.

The law describes how a gas kept under constant pressure tends to expand when the temperature increases and it's described by the following equation:

$\frac{V}{T}=k$

Where,

$V=Volume\\T=Temperature\\k=constant$

Also, to describe the relationship between two differents volumes at different temperatures, we have:

$\frac{V_{i}}{T_{i}}=\frac{V_{f}}{T_{f}}$

Where,

$V_{i}=InitialVolume\\T_{i}=InitialTemperature\\V_{f}=FinalVolume\\T_{f}=FinalTemperature$

Have a nice day!

Answer 2

Answer:

On Ed it is Gay-Lussac’s law