What is the basic unit of heat in the English system?

What is the basic unit of heat in the English system?

• A. British Thermal Unit.
• B. Calorie.
• C. Joule.
• D. Thermal calorie.

Answer: (A)

Heat in the English system is measured with the British Thermal Unit. A BTU is defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit at standard pressure. This unit is widely used in heating, ventilation, and air conditioning calculations and in describing energy content of fuels within the English engineering framework. The calorie belongs to the metric system, the joule is the SI unit of energy, and while terms like thermal calorie exist, they are not the standard English unit for heat.

Heat in the English system is measured with the British Thermal Unit. A BTU is defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit at standard pressure. This unit is widely used in heating, ventilation, and air conditioning calculations and in describing energy content of fuels within the English engineering framework. The calorie belongs to the metric system, the joule is the SI unit of energy, and while terms like thermal calorie exist, they are not the standard English unit for heat.