An ideal gas expands in an adiabatic process from initial pressure Di and initial volume V1. To calculate the final volume V2 of the gas, it is necessary to know the final pressure P2 and

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.

An atom's smaller negative particles are at a distance from the central positive particles, so the negative particles are easier to move.