Question

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The hot coffee will transfer thermal energy into the air, and the energy transfer will continue until the coffee is at room temperature.
The air will transfer thermal energy into the coffee, and the energy transfer will continue until the coffee is at room temperature.
The hot coffee will transfer thermal energy into the air and will continue to transfer energy until they are both 93℃.
The air will transfer thermal energy into the coffee and will continue to transfer energy until they are both 93℃.

Answer 1

The hot coffee will transfer thermal energy into the air, and this energy transfer will continue until the coffee and the air reach thermal equilibrium, which is typically at room temperature. In this scenario, the coffee cools down to room temperature, while the air warms up slightly, but not necessarily to a temperature as high as 93°C. The process is driven by the second law of thermodynamics, where heat flows from a hotter object (the coffee) to cooler surroundings (the air) until equilibrium is reached.