Se define como el movimiento corporal producido por los músculos esqueléticos que tiene como resultado el gasto de energía, teniendo en cuenta que el gasto calórico individual en una tarea está determinado por la masa muscular del sujeto y la intensidad, duración y frecuencia de las contracciones musculares. el anterior concepto hace referencia a:

Suppose a pair of chemical compounds a and b can react in two different ways: a + b -> c reaction 1 gives product c. a + b -> d reaction 2 gives product d. the following facts are known about the two reactions: . reaction 1 is endothermic and reaction 2 is exothermic. if a reaction vessel is charged (filled) with a and b , then at first d is produced faster than c. use these facts to sketch a qualitative reaction energy diagram for both reactions. note: because these sketches are only qualitative, the energies don? t have to be exact. they only have to have the right relationship to each other. for example, if one energy is less than another, that fact should be clear in your sketch.