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Which energy conversion path results when isopentane undergoes boiling?

A)Thermal to increased molecular kinetic energy
B)Chemical to increased potential energy
C)Radiant to reduced vibrational energy
D)Electrical to decreased intermolecular energy

💡 Explanation

The fluid boils when an external heat source is used to overcome the latent heat of vaporization via phase transition; because **conductive heat transfer** causes the kinetic energy of the adjacent isopentane to increase toward its boiling point, this results in liberation of liquid rather than chemical changes to individual molecules, therefore A is the process.

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