Question

Which law states that the volume of a gas is proportional to the moles of the gas when pressure and temperature are kept constant?

Answer 1

d. Avogadro’s law

Step-by-step explanation:

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Answer 2

Answer: Avogadro's Law states that volume is directly proportional to the oles of the gas.

Explanation: Expression fro ideal gas equation:

`PV=nRT`

This law has arrived from the combination of four laws:

1) Boyle's Law: This law states that pressure is inversely proportional to the volume of the gas at constant temperature and number of moles.

`P\propto (1)/(V)` (At constant temperature and number of moles)

2) Charles' Law: This law states that volume is directly proportional to the temperature of the gas at constant pressure and number of moles.

`V\propto T` (At constant pressure and number of moles)

3) Gay-Lussac's Law: This law states that pressure is directly proportional to the temperature of the gas at constant volume and number of moles.

`P\propto T` (At constant volume and number of moles)

4) Avogadro's Law: This law states that volume is directly proportional to the number of moles of the gas at constant pressure and temperature.

`V\propto n` (At constant temperature and pressure)

Hence, the correct answer is Avogadro's Law.