How much energy is required to raise the temperature of one kilogram (liter) of water 1°C?
A)10 calories
B)100 calories
C)1 kilocalorie
D)10 kilocalories
E)100 kilocalories

Question

Quizplus · Accepted Answer

According to the definition of a calorie, it is the amount of energy required to raise the temperature of one gram of water by one degree Celsius. Therefore, to raise the temperature of one kilogram (1000 grams) of water by one degree Celsius, we need 1000 calories. However, a kilocalorie (kcal) is the standard unit of measuring energy in food, and it is equal to 1000 calories. Therefore, the amount of energy required to raise the temperature of one kilogram of water by one degree Celsius is 1 kilocalorie.

How Much Energy Is Required to Raise the Temperature of One