(B) Weiland Scuba Tank Katelyn and Bridget

The scuba diver has a full 11.0 liter air tank at a pressure of 650 kPa. The pressure in the tank is changing at a rate of 5 kPa/minute. At what rate is the volume of the air changing in the tank? How long can he stay underwater? How far across the ocean floor can he go before he must turn around and go back?