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Among the methods for teaching physics, one of the more instructive is the experiment, we presents a simple and inexpensive for the indirect measurement of the latent heat of vaporization of liquid nitrogen using typical elements of a general physics laboratory, such as resistors, voltage sources, multimeters, timers and a balance, with the latter measures the mass change in a container of liquid nitrogen with respect to the time, when the nitrogen is heated with a resistance when it passes by an electric current, we found a proportionality between the electric power supplied to nitrogen, time and the mass of Nitrogen evaporated, which relate to the latent heat of vaporization of nitrogen.

MEDICIÓN DEL CALOR LATENTE DE VAPORIZACIÓN DEL NITRÓGENO LÍQUIDO EN LA ENSEÑANZA DE LA FÍSICA EXPERIMENTAL