The amount of heat energy removed from the water can be calculated using the formula:
Q = m x c x ΔT
where Q is the amount of heat energy in Joules (J), m is the mass of the water in grams (g), c is the specific heat capacity of water in J/g°C, and ΔT is the change in temperature in °C.
In this case, we have:
m = 250 g
c = 4.184 J/g°C
ΔT = 22.9°C - 14.7°C = 8.2°C (note that the temperature change is negative because the water is losing heat)
Substituting these values into the formula:
Q = 250 g x 4.184 J/g°C x (-8.2°C)
Q = -8,188.4 J
The negative sign indicates that heat energy was removed from the water (as opposed to added). Therefore, 8,188.4 J of heat energy was removed from the water.