The specific heat of water is 4.186 J/g°C. A sample of 40. g H subscript 2 O is at an initial temperature of 91.0 °C. If the sample of water released a total of 1,300 joules, what is the approximate final temperature of the water?
a. 74 °C
b. 87 °C
c. 81 °C
d. 83 °C