En un tratamiento a base de calor, una parte de obre caliente se enfria con agua, por lo cual pasa de 400 a 30°C. Cual era la masa de dicha parte si perdio 80Kcal de calor?

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.