Which one of the following units represents the largest amount of energy?
Q1. Which one of the following units represents the largest amount of energy?
Answer: Calorie
Explanation: 1 calorie = 4.184 joules, 1 joule = 10⁷ ergs, and 1 electron volt = 1.6×10⁻¹⁹ joules; therefore a calorie represents the largest amount of energy among these units.