Btu
One BTU is the energy required to heat 1 avoirdupois pound of liquid water by 1 degree Fahrenheit, at a pressure of one atmosphere.
One BTU is the energy required to heat 1 avoirdupois pound of liquid water by 1 degree Fahrenheit, at a pressure of one atmosphere.
One electron volt is the energy acquired by an electron when accelerated through a potential difference of 1 volt.It is equal to 1.602 × 10−19 joules.