Answer:
The total number of Joules lost to the surrounding is -837.2 J
Explanation:
Given that:
mass = 10 grams
initial temperature = 80°C
Final temperature = 60 °C
Specific heat of water= c = 4.186 J/g. °C
The total number of Joules lost can be determined by finding the amount of heat energy Q released by using the formula:
Q = mC ΔT
Q = 10 × 4.186 × (60 - 80)° C
Q = 10 × 4.186 × - 20° C
Q = -837.2 J
Thus, the total number of Joules lost to the surrounding is -837.2 J
