Question

Explain mesurable
properties of gases

Answer 1

Dear student,

There are four measurable properties of gases namely:
1) Pressure: It can be defined as the amount of force that a gas exerts on the container walls. Pressure is calculated in all directions. Pressure of a gas can be measured in various units such as Pa (Pascal ) , N/m² (Newton per metre square) , atm , bar etc. It is caused when the gas particles having particular amount of kinetic energy collide with the walls of the container. Pressure increases as the temperature of the container increases.

2) Temperature : It can be expressed in three units: K (Kelvin) , ^oC (Degree Celcius ) , ^oF ( Degree Fahrenheit). Generally, expansion of gases take place on increasing the temperature of the gas. It is measured by using an instrument called thermometer.

3) Mass : Mass of the gas can be measured by first taking the mass of empty container and subtracting it from the mass of container having gas. The difference of these two give us the mass og the gas that is contained in the container. The mass is generally measured in g (grams ) or kg (kilograms ). If the mass is less, smaller unit can also be used to express.

4) Volume : Gases occupy all of the space available to them since their attraction forces are weak. So, we can say that a gas present in a container will occupy the volume of the container. We can very easily say that the volume of the container is equal to the volume of the container. Volume can be measured in L (litres) or mL (mililitre) or m³ (metre cube)

Regards