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No, to convert from cal. to joules 1 cal. = 4.18400 joules ,
then 1KCal = (4.18400 *10^-3) joules so 3.25 kcal doesn't equal 3.25 Joules
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∙ 12y ago
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During an energy transfer what happens to the total amount of energy?
Energy can not be destroyed, so the total amount of energy before a change is equal to the amount of energy after the change. However, some energy is changed into a useful form, but some may be wasted and not used. For example, a light bulb, changes electrical energy into light energy, but some of the energy is changed to heat and some to sound, these are not useful and are wasted, but are changed nonetheless. So a transformation from mechanical energy to heat will have the same total energy at the start as at the finish, but unless it is 100% efficient some of the original energy will be 'lost'
What Units used to express energy transfer?
Its the exact amount without loosing any in the process. This process is called "The Law of Conservation of Energy".
What is The amount of energy in a sound wave is called?
Amplitude
A substance with a higher specific heat will take more energy to raise its temperature?
It means that it takes more energy to produce the same increase in temperature in the same amount. For example it takes more energy to raise the temperature of 1 gram of water by 1 degree than it does to do the same with 1 gram of iron. Therefore water has a higher specific heat.
What happens when electrons moves to higher energy level?
The electron gains energy.
Does an electron have the same amount of enery in all orbitals?
All of the orbitals in the same energy sublevel (s, p, d, f) have the same amount of energy. For example, each of the 3p orbitals have the same energy and all of the electrons in the 3p orbitals have the same energy.
What can be said of the amount of energy that an electron absorbs when it is excited compared to the amount of energy that it releases when it returns to ground state?
The amount of energy that is absorbed is the same as the amount of energy that is released.
Does the amount of energy change when one energy changes to another?
No. It just gets moved around. The total amount of energy stays the same.
Does Nuclear energy provide a great amount of energy from a small amount of fuel?
Yes. Producing the same amount of energy takes thousands of times as much fossil fuel.
Is it true or false that the amount of energy produced for each kilogram of uranium is about the same as the amount of energy from a kilogram of coal?
false
Why does work have the same unit as energy?
because work is a transformation of energy. If there is some loss of energy in a process then same amount of work will be created. For this reason the unit of work and energy is same.
Why arn't work and energy the same?
Work and energy use the same units; but the term "work" is used in the sense of "transfer of energy" (amount of energy transferred).
What always happens when an energy transformation occurs?
The total amount of energy remains the same.
He total amount of energy before and after a chemical reaction is the same. Therefore energy is .?
Conserved.
Compare the total amount of energy before and after physical and chemical changes?
Physical Change-- Same amount of energy, but in different form Chemical Change-- Different amount of energy, and in a different form
What state of law states that after energy conversions you end up with the same total amount of energy as the original amount of potential?
That's not an accurate quote of the 'law', and it's not a true statement either. To state the law in terms of a correction to the statement in the question: After energy conversions, you end up with the same total amount of energy as the original amount of energy. This law is cleverly referred to as the law of "Conservation of Energy".
What does friction do to the amount of energy?
Nothing - the total stays the same.
