The amount of heat necessary to raise 1 gram of a substance by 1 degree Celsius is known as which of the following?

The amount of heat necessary to raise 1 gram of a substance by 1 degree Celsius is known as the specific heat capacity. Specific heat capacity is a property of materials that quantifies how much heat energy is required to change the temperature of a given amount of substance. It is expressed in units of Joules per gram per degree Celsius (J/g°C) or calories per gram per degree Celsius (cal/g°C).

Each substance has a unique specific heat capacity, which makes this property crucial in various scientific applications, including thermodynamics, physical chemistry, and engineering. For example, the specific heat of water is particularly high (about 4.18 J/g°C), which explains why water is effective in regulating temperature in many natural and engineered systems.

In summary, specific heat capacity is an essential concept in understanding how materials respond to heat and temperature changes.