Question Detail

CHM 101 Thermochemistry Objective Question

Question

Heating 15.0 g of water from 20.0°C to 50.0°C requires __________ kJ of heat.
Options
A 1.88
Correct Answer
B 0.628
C 18.8
D 1880
Correct Answer

Option A is the correct answer.

Detailed Explanation

q = m * c * ΔT = 15.0 g * 4.184 J/g°C * 30.0°C = 1882.8 J = 1.88 kJ.

Hint

Use the specific heat of water (4.184 J/g°C).

Question Info