Question

Account for the following:
a) The size of weather balloon becomes longer and larger as it ascends into higher altitude.
b) Critical temperature of CO2 & CH4 gases are 31.10C & 81.9 0C respectively which of these has strong intermolecular forces & why?

Answer 1

a) At higher altitude atmospheric pressure decreases but inside the balloon gas exerts pressure & size becomes larger.
b) CO2 has stronger Vander Waals forces of attraction than CH4 because of greater polarity & high molar mass.