(i) The size of a weather balloon becomes larger and larger as it ascends up into larger altitude. (ii) Explain the graphical representation of Charles' law.

(i) The size of a weather balloon becomes larger and larger as it asce

1.	(i) The size of a weather balloon becomes larger and larger as it ascends up into larger altitude. (ii) Explain the graphical representation of Charles' law.
Answer» Solution :(b) (i) The volume of the gas is inversely proportional to PRESSURE at a given temperature according to Boyle.s law. As the weather BALLOON ascends, the pressure tends to decrease. As as result, the volume of the gas inside the balloon or the size of the balloon is likely to increase. (ii) 1. Variation of volume of the gas sample with temperature at constant pressure. 2. Each line (ISO bar) represents the variation of volume with temperature at certain pressure. The pressure increase from `P_(1) " to " P_(5)`. 3. i.e. `P_(1) lt P_(2) lt P_(3) lt P_(4) lt P_(5)`. When these lines are extrapolated to ZERO volume, they intersect at a temperature of `-273.15^(@)C`. 4. All gases are becoming liquids, if they are cooled to sufficiently low temperature. 5. In other words, all gases occupy zero volume at absolute zero. So the voume of a gas can be measured over only a limited temperature RANGE.