Question Detail

CHM 101 CHM 101 Past Questions Objective Question

Question

The specific heat capacity of olive oil is 2.2 J/°C/g. How much energy, in kJ, is required to raise the temperature of 48 g of olive oil from 23°C to 145°C?
Options
A 12900
B 12.9
Correct Answer
C 24.5
D 15.3
Correct Answer

Option B is the correct answer.

Detailed Explanation

q = m × c × ΔT = 48 g × 2.2 J/g°C × (145-23)°C = 48 × 2.2 × 122 = 48 × 268.4 = 12,883.2 J = 12.9 kJ.

Hint

q = mcΔT. Convert J to kJ.

Question Info