A fish at a pressure of 1.1 atm has its swim bladder inflated to an initial volume of 8.16 mL. If the fish starts swimming horizontally, its temperature increases from 20.0°C to 22.0°C as a result of the exertion. 

(a) Since the fish is still at the same pressure, how much work is done by the air in the swim bladder? 

(b) How much heat is gained by the air in the swim bladder? Assume air to be a diatomic ideal gas.
(c) If this quantity of heat is lost by the fish, by how much will its temperature decrease? The fish has a mass of 5.00 g, and its specific heat is about 3.5 J/(g·°C).