Physics, 25.01.2021 20:10 kelciiann5968

The particles of a substance can have kinetic energy (KE) and potential energy (PE). Which equation best summarizes the internal energy (U) of the substance?

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Answer from: gabbie63

The equation that best summarizes the internal energy (U) of a substance that has both kinetic and potential energy is U = ∑(KEₙ) + ∑(PEₙ).

WHAT IS INTERNAL ENERGY:The internal energy of a substance is equal to the total amount of potential energy and kinetic energy of all the particles in the substance.According to this question, the particles of a substance can have kinetic energy (KE) and potential energy (PE). This means that the internal energy is the sum of the kinetic energy and potential energy of all the particles in the substance.

Therefore, equation that best summarizes the internal energy (U) of a substance that has both kinetic and potential energy is U = ∑(KEₙ) + ∑(PEₙ).

Learn more about internal energy at: link

Answer from: skeletonorchestra

The internal energy of a substance is equal to the total amount of potential energy and kinetic energy of ALL the particles in the substance.

For example, when the temperature increases (more temperature means more energy), the kinetic energy of the particles in the substance increases.

And when we reach a point near a change of phase (like near fusion point) there is energy used to break the bonds between the particles, then we have an increase in potential energy.

Then we could write the internal energy as:

U = ∑(KEₙ) + ∑(PEₙ)

Where ∑(KEₙ) and ∑(PEₙ) are the sums of the kinetic energy and potential energy of all the particles in the substance.

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as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper.

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Well the magnitude of its acceleration related to that car starts with the oil change like when you have to change the oil in your car you have to make sure that your precious car is starting really propley and very well

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The particles of a substance can have kinetic energy (KE) and potential energy (PE). Which equation...

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