Question Detail
Question
Calculate ΔU for a system undergoing an endothermic process where 15.6 kJ of heat flows and 1.4 kJ of work is done on the system.
Correct Answer
Option B is the correct answer.
Detailed Explanation
ΔU = q + w. Endothermic means q = +15.6 kJ. Work done on the system means w = +1.4 kJ. ΔU = 15.6 + 1.4 = 17.0 kJ.
Hint
The notes provide this exact calculation.