Answer:
-47749.69 joule energy release.
Explanation:
Given data:
Mass of water = 777.1 g
Initial temperature = 57.3°C
Final temperature = 42.6 °C
Energy change = ?
Solution:
Specific heat capacity of water is 4.18 J/g.°C
Q = m.c. ΔT
Q = amount of heat absorbed or released
m = mass of given substance
c = specific heat capacity of substance
ΔT = change in temperature
ΔT = 42.6 °C - 57.3°C
ΔT = -14.7°C
Q = 777.1 g × 4.18J/g.°C × -14.7°C
Q = -47749.69 J
-47749.69 joule energy release.
