Btu (15°C)
One Btu (15.0°C) is the energy required to heat 1 avoirdupois pound of liquid water from 14.5 °C to 15.5°C at a pressure of one atmosphere and equates to 1054.804 J
One Btu (15.0°C) is the energy required to heat 1 avoirdupois pound of liquid water from 14.5 °C to 15.5°C at a pressure of one atmosphere and equates to 1054.804 J
A calorie is the amount of energy it takes to warm 1 gram of water by 1° C. One calorie is equal to 4.184 joules