A small bubble rises from the bottom of a lake, where the temperature and pressure are `8^(@) C` and `6.4 atm` , to the surface of the water , where the temperature is `25^(@) C` and pressure is `1.0 atm`. Calculate the final volume `("in mL")` of the bubble if its initial volume was `2.1 mL`.
Strategy : The amount of gas in the bubble remains constant `(n_(1) = n_(2))` but there is a change in all the three quantities `p , V`, and `T`. This suggests that we use the combined gas law. We tabulate what is known and what is asked for , solve the combined gas law for the unknown quantity `V_(2)` and substitute the known values.