The quantity of heat required to change the temperature of 1 g of a substance by 1°C is defined as
A) a joule
B) specific heat capacity
C) a calorie
D) density

Question

Quizplus · Accepted Answer

The quantity of heat required to change the temperature of 1 g of a substance by 1°C is defined as specific heat capacity. It is expressed in units of J/g°C or cal/g°C. A joule (A) is a unit of energy, not specific heat capacity. A calorie (C) is another unit of energy, but it is often used to express specific heat capacity. Density (D) is the mass per unit volume of a substance and is not related to how much heat is required to change its temperature.

The Quantity of Heat Required to Change the Temperature of 1