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Question
durante un cambio de fase endotérmico, ¿qué sucede con la energía potencial y la energía cinética?
la energía potencial aumenta y la energía cinética permanece igual.
la energía potencial disminuye y la energía cinética disminuye.
la energía potencial aumenta y la energía cinética aumenta.
la energía potencial permanece igual y la energía cinética aumenta.
In an endothermic phase - change, heat is absorbed. The potential energy of the substance increases as the intermolecular forces change during the phase - change. Since the temperature remains constant during a phase - change (in a pure substance), the kinetic energy of the molecules remains the same.
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The potential energy increases and the kinetic energy remains equal. (La energía potencial aumenta y la energía cinética permanece igual.)