Answer:
24000 J = 24 kJ
Explanation:
Using the formula q = mcΔT (energy required to heat an object)
q = energy required
m = mass (70.0 g)
c = specific heat capacity (4.179 J *°C⁻¹*g⁻¹)
ΔT = change in temperature (100-18 = 82°C)
∴q = 70.0g * 4.179 J *°C⁻¹*g⁻¹ * 82°C ( symbols g, °C⁻¹,g⁻¹ and °C cancel out everything is multiplied together)
∴q = 24000 J = 24kJ
