What minimum heat is needed to bring 100 g of water at 50 â c to the boiling point and completely boil it away? the specific heat of water is 4190 j/(kgâk) and its heat of vaporization is 22.6 ã 10 5 j/kg ?

The specific heat of water is 4190 J/(kg⋅K) and its heat of vaporization is 22.6×105J/kg. Express your answer to two significant figures and include the appropriate units.

stands for electromotive force and it is measured in volts. despite its name, it is not actually the force in the sense of being a "pushing" or "pulling" (not measured in newtons).an equation that relates emf,  ℰ,  to a battery's terminal voltage, v, current, i, and internal resistance, r, is    ℰ = v + irin this case, the emf can be interpreted as a voltage—a difference in electric potential.i would not say that it would be considered an energy. if emf can be defined as the energy/work per a unit charge from a battery or other electric source, then it is not strictly energy.