Question

A balloon has a volume of 2.53 liters at 20.5°C. What will be the volume (in milliliters) of the balloon at 82°C? Assume the pressure doesn’t change and the amount of gas in the balloon doesn’t change.

Answer 1

Formula:- At constant pressure, according to Charle's law,

...(1)

Given:-

  

from eq(1) we get

Therefore, at 82 °C the volume of balloon will be 3060.13 ml.

Note:-

Charle's law:-

at constant pressure, volume of given mass of gas is directly proportional to absolute temperature.

ie. ie

Therefore,