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The heating curve provides a visual representation of the connection between kinetic/potential energy and thermal energy. As the temperature gradually increases from 0°C to the melting point at 45°C, thermal energy transfers occur as particles shift from a solid to a liquid state. Subsequently, the sharp temperature rise from the melting point to the boiling point at 85°C illustrates the conversion of potential energy to kinetic energy during the liquid-to-gas transition. Finally, the horizontal line at the boiling point, extending to the maximum temperature of 110°C, signifies consistent energy absorption while the substance remains in the gas phase. These observations collectively support the idea that as the substance transitions between states, kinetic energy increases while potential energy decreases, resulting in an overall rise in thermal energy. Thus, the relationship between kinetic/potential energy and thermal energy is both direct and increasing.
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