Definition

Noun: * Specific heat: A physical property of a substance. It is defined as the amount of heat energy required to raise the temperature of a unit mass of that substance by one degree Celsius (or one Kelvin).

Usage

• "Specific heat" is a scientific term used primarily in physics, chemistry, and engineering.
• It is a constant value for a given substance under specified conditions (e.g., at constant pressure or constant volume).
• It is typically used with the verb "have" or "is" when stating a value, or with verbs like "calculate," "measure," or "determine."

Examples

• Water has a specific heat of approximately 4.18 joules per gram per degree Celsius.
• The experiment aimed to measure the specific heat of the unknown metal alloy.
• A substance with a high specific heat, like water, requires more energy to change its temperature.

Advanced Usage

• Specific heat capacity: This is a more precise and complete term synonymous with "specific heat." It explicitly includes the concept of capacity.
  • The specific heat capacity of copper is lower than that of water.
• The concept is often discussed in relation to thermal inertia, where materials with high specific heat resist temperature changes.

Variants and Related Words

• Heat capacity (Noun): The amount of heat required to raise the temperature of an entire object (not a unit mass) by one degree. It depends on both the substance and the object's mass.
• Molar heat capacity (Noun): The amount of heat required to raise the temperature of one mole of a substance by one degree.

Synonyms

• Specific heat capacity
• Mass-specific heat capacity

Notes on Different Meanings

• "Specific heat" has a single, precise scientific meaning. It is not used idiomatically in everyday language.
• The word "specific" in this context means "per unit mass," distinguishing it from the total heat capacity of an object.

Noun

1. the heat required to raise the temperature of one gram of a substance one degree centigrade