Review Interactive Solution 12.47 for help in approaching this problem. When resting, a person has a metabolic rate of about 7.05 x 105 joules per hour. The person is submerged neck-deep into a tub containing 2.84 x 103 kg of water at 23.7 °C. If the heat from the person goes only into the water, find the water temperature in degrees Celsius after half an hour.