Answer: -5582.5J
Explanation:
The quantity of Heat Energy (Q) required to heat a substance depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)
Thus, Q = MCΦ
Since,
Q = ?
Mass of wood = 550 grams
C = 2.03 (J/gºC)
Φ = (Final temperature - Initial temperature)
= 10°C - 15°C = -5°C
Then, Q = MCΦ
Q = 550g x 2.03J/gºC x -5°C
Q = -5582.5J
Thus, -5582.5 joules of heat is needed convert 550 grams of wood at 15°C down to 10 °C
