The specific heat of water is 1.000 cal/(g·°C). What is the specific heat of water in SI units?

Question

Quizplus · Accepted Answer

To convert the specific heat of water from calorie-based units to SI units, we need to use the conversion factor of 4.186 J/cal. Therefore, specific heat of water in SI units is 4.186 J/(g·°C). However, the answer choices are in units of J/(kg·K), so we need to convert grams to kilograms and Celsius to Kelvin.

1 g = 0.001 kg
1°C = 1 K

So,

4.186 J/(g·°C) = 4.186 J/(0.001 kg·K)
= 4186 J/(kg·K)

Therefore, the answer is E) 4,186 J/(kg·K).

The Specific Heat of Water Is 1