Table of Contents
What type of reaction happens when you strike a match?
When a match is lit, potassium, chlorine, phosphorus, and sulfur react and cause a combustion, which produces light and heat. This chemical reaction is exergonic because it releases energy and exothermic because it releases heat.
Does fire give off light?
The fact that the chemical reactions in a fire generate a lot of new heat is what sustains the fire. As they heat up, the rising carbon atoms (as well as atoms of other material) emit light. This “heat produces light” effect is called incandescence, and it is the same kind of thing that creates light in a light bulb.
Which is the best example of electromagnetic energy?
Electromagnetic Energy. Electromagnetic energy (or radiant energy) is energy from light or electromagnetic waves. Example: Any form of light has electromagnetic energy, including parts of the spectrum we can’t see. Radio, gamma rays, x-rays, microwaves, and ultraviolet light are some examples of electromagnetic energy.
What does it mean when you burn a match?
A burning match represents an exothermic reaction. The chemicals release energy in the form of heat and light as the reaction progresses.
How to calculate the energy of a photo?
ν = frequency. Rearrange the equation to solve for frequency: ν = c/λ. Next, replace frequency in the first equation with c/λ to get a formula you can use: E = hν. E = hc/λ. In other words, the energy of a photo is directly proportional to its frequency and inversely proportional to its wavelength.
Which is the best example of chemical energy?
Chemical energy results from chemical reactions between atoms or molecules. There are different types of chemical energy, such as electrochemical energy and chemiluminescence. Example: A good example of chemical energy is an electrochemical cell or battery. Electromagnetic energy (or radiant energy) is energy from light or electromagnetic waves.