Question #f8bfc

1 Answer
Nov 30, 2015

Pounds, degrees Fahrenheit.

Explanation:

A British thermal unit, or Btu, is defined as the amount of heat needed to raise the temperature of #"1 lb"# of water by #1^@"F"#.

This means that if you have a #"1-lb"# sample of water at a temperature of, say, #77^@"F"#, you would need to supply it with #"1 Btu"# of heat in order to get its temperature to increase to #78^@"F"#.