An ice cube is floating in water kept in glass. The water in glass will get cooled majorly by:
Correct answer: A. Convection
- A. Convection
- B. Conduction
- C. Radiation
- D. Conduction and convection both
Explanation
The correct answer is convection. In this scenario, the heat from the warmer water is transferred to the ice cube primarily through convection currents. As the ice melts, the cooler water mixes with the warmer water, creating a convection cycle that gradually cools the entire glass of water. Conduction is not the main process because it typically involves heat transfer through solids. Radiation is irrelevant in this scenario as it involves heat transfer through electromagnetic waves, which does not apply here. Therefore, the cooling effect is primarily due to convection currents in the water.
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About Thermal Equilibrium and Heat
Thermal equilibrium means that bodies in contact have the same temperature and no net heat flows between them. The topic distinguishes heat from temperature, uses the zeroth law of thermodynamics, and covers heat transfer, specific heat capacity, thermal expansion and the conditions for reaching equilibrium.
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