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The burning of charcoal is a spontaneous process yet heat must first be applied to start a charcoal why?
Burning charcoal is spontaneous, but not at room temperature. To start the combustion energy must be added (in the form of heat). Once the temperature of the charcoal reaches a certain temperature it reacts exothermically and releases heat. This heat of reaction is sufficient to locally heat more charcoal so that it burns continuously.
How do you get powdered charcoal from a mixture of copper oxide and powdered charcoal?
To obtain powdered charcoal from a mixture of copper oxide and powdered charcoal, you can use a reduction reaction. Heat the mixture in a furnace or with a suitable heat source, as copper oxide will react with the charcoal (carbon) to form copper and carbon dioxide. The copper will be produced as a metal, leaving behind the powdered charcoal. After cooling, you can separate the unreacted charcoal from the copper.
If it absorbs heat is it exothermic or endothermic?
If a process absorbs heat, it is endothermic. Endothermic reactions require an input of energy to proceed and absorb heat from their surroundings in order to do so.
When a substance melt or boils it absorbs?
Heat
How does the temperature of pavement compare between day and night?
During the day, pavement absorbs and retains heat from the sun, causing it to be much warmer compared to the air temperature. At night, the pavement begins to lose that stored heat and cools down, often becoming cooler than the air temperature. This temperature difference can have implications for things like road maintenance, tire wear, and the urban heat island effect.
Why does the ground get warm during the day?
It absorbs the heat from the sun, it is a better conductor of heat than the air so it remains warm longer.
How does charcoal use help maintain health?
It absorbs toxins
How does color affect how an object absorbs heat?
White color doesn't absorbs heat and black color absorbs heat much.
Why do people wear black on a cold day?
Because Black color absorbs heat.
What is the purpose of putting pieces of charcoal inside the refrigerator?
Charcoal absorbs bad smells. The porous property of charcoal will absorb any odours that are in your fridge.
What can absorb black?
Black absorbs visible light as it does not reflect any color. Materials that are black in color, like charcoal, absorb more light and heat compared to lighter colored materials.
Will the pavement or grass heat up faster on a hot day?
Pavement will heat up faster than grass on a hot day because pavement absorbs and retains heat more effectively than grass. Grass tends to have a higher albedo, meaning it reflects more sunlight and absorbs less heat compared to pavement.
The burning of charcoal is a spontaneous process yet heat must first be applied to start a charcoal why?
Burning charcoal is spontaneous, but not at room temperature. To start the combustion energy must be added (in the form of heat). Once the temperature of the charcoal reaches a certain temperature it reacts exothermically and releases heat. This heat of reaction is sufficient to locally heat more charcoal so that it burns continuously.
What happens to gas in a gas mask?
The Activated charcoal inside the filter (or whatever substance it uses) absorbs the chemicals until the charcoal is completely coated.
Does the color of a shirt affect the amount of heat it absorbs?
yes, the darker it is, the more heat it absorbs.
What is the hypothesis of which fabric color absorbs the most heat?
black absorbs more heat than other colors because it absorbs wavelees
Which is absorbs more heat -black or red?
Black absorbs more heat than red because it absorbs a wider range of wavelengths across the visible spectrum and converts them into heat. Red, being a lighter color, reflects more light and heat.
