$40 QUESTION -- Category: BT & You
What is one (1) Btu?
- The time it takes to melt a two-inch ice cube, measured at an elevation of 10,000 feet.
- The amount of light generated by a three-inch candle in a sealed room with no wind.
- The heat energy needed to raise the temperature of a pound of water one degree Fahrenheit at sea level.
Click on the answer you think is correct!