was there a release or absorption of heat in the candle, gas stove and light bulbs? Explain each one.
Answers
Answer:
Candle :
The heat from the wick melts the wax which gets absorbed in the wick and then gets burnt (which is really oxidation) to produce heat energy as well as light energy. The energy transforms from chemical energy to heat and light energy. Because when the candle burns a chemical reaction occurs, and produces heat and light.
Gas stove:
Heat is taken from your skin to evaporate the water on your body. Evaporation is a cooling process. Latent heat of condensation is energy released when water vapor condenses to form liquid droplets. An identical amount of calories (about 600 cal/g) is released in this process as was needed in the evaporation process.
Bulb :
Some of it is converted to light while the rest of the energy is dissipated as heat. But the light from the light bulb hits the walls and objects in your room and scatters. Every time the light bounces off something, some of it is absorbed as heat.
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