What quantity of heat is required to raise the temperature of 450 grams of water from 15°C to 85°c? The specific heat capacity of water is 4.18 J/g/°C

Question

What quantity of heat is required to raise the temperature of 450 grams of water from 15°C to 85°c? The specific heat capacity of water is 4.18 J/g/°C

Answer 1

Q = mC_pΔT where "Q" is the heat in joules, "m" is the mass in grams, C_p is the specific heat in J/g/°C, and ΔT is the temperature change in °C:

Q = (450)(4.18)(85 - 15) = 131670 joules, or, rounded to the appropriate number of sig figs, Q = 130,000 joules