what conclusion can be drawn about the heat of vaporization of ethanol from the heating curve?\na the…
what conclusion can be drawn about the heat of vaporization of ethanol from the heating curve?\na the potential energy of the ethanol molecules increases through vaporization.\nb the temperature increase converts bonding forces into intermolecular forces.\nc the kinetic energy of vaporization represents a greater change of stored energy.
Answer
Brief Explanations:
During vaporization, heat is absorbed to overcome intermolecular forces and change the state from liquid to gas. This increases the potential energy of the ethanol molecules as they move further apart. Kinetic energy remains constant during a phase - change (vaporization here as temperature is constant during vaporization). There is no conversion of bonding forces into intermolecular forces as described in option B.
Answer:
A. The potential energy of the ethanol molecules increases through vaporization.