82.

How will you verify Charle's law graphically? What is the practical importance of Charle's law?

Is it possible to cool a gas below absolute zero?

What is absolute or kelvin scale of temperature?

Why is kelvin scale of temperature regarded better than centigrade scale?

A sample of helium gas has a volume of 500 cm³ at 373K. Calculate the temperature at which the volume becomes 260 cm³. Assume that the pressure is kept constant.

On a ship sailing in Pacific ocean where the temperature is 23.4 °C, a balloon is filled with 2L air. What will be the volume of the balloon when the ship reaches Indian ocean, where the temperature is 26.1°C ? 

A cylinder contains 450 mL of a gas at 27°C at constant pressure. The cylinder is placed in a refrigerator at –10°C. Calculate the resultant volume of the gas.

What volume of air will be expelled from a vessel containing 380 cm³ at 10°C when it is heated to 30°C at the same pressure ?

A student forgot to add the reaction mixture to the round bottomed flask at 27°C but instead he/she placed the flask on the flame. After a lapse of time, he realized his mistake, and using a pyrometer he found that the temperature of the flask was 477°C. What fraction of air would have been expelled out?