Question

Statement: Equal volumes of all gases always contain equal number of moles.

State whether the given statement is true or false.

• A. True
• B. False

Answer 1

The correct option is A True

Avogadro law: It states that equal volumes of all gases under the same conditions of temperature and pressure contain the equal number of molecules.

This means that as long as the temperature and pressure remain constant, the volume depends upon number of molecules of the gas.

Since volume of a gas is directly proportional to the number of moles; one mole of each gas at standard temperature and pressure (STP) will have same volume.

Hence, the given statement is $\text{true}$