How many BTUs does it take to raise the temperature of one lb. of water from 100°F to 212°F?

To determine the amount of BTUs required to raise the temperature of one pound of water from 100°F to 212°F, it's essential to recognize that the process involves heating water through a temperature change of 112°F. The specific heat of water is approximately 1 BTU per pound per degree Fahrenheit.

Thus, to calculate the BTUs needed, you would multiply the temperature change by the specific heat:

Temperature change = 212°F - 100°F = 112°F.

Amount of heat required = Temperature change * Specific heat = 112°F * 1 BTU/lb°F = 112 BTUs.

This information confirms that in order to raise the temperature of one pound of water from 100°F to 212°F, 112 BTUs is accurately required. This is directly linked to the physics of heat energy transfer, demonstrating the fundamental principle that heating water necessitates energy equivalence in BTUs dependent on the temperature increase.