A scuba tank is filled with air to a pressure of 292 atm when the air temperature is 23 degrees celcius.

A scuba tank is filled with air to a pressure of 292 atm when the air temperature is 23 degrees celcius. A diver then jumps into the ocean and, after a short time treading water on the ocean surface, checks the tank's pressure and finds that it is only 282 atm. Assuming the diver has inhaled a negligible amount of air from the tank, what is the temperature of the ocean water?