The relationship between heat (q), work (w), and internal energy (U) can be described with which of the following?a. q = ΔU × wb. ΔU = qwc.

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The relationship between heat (q), work (w), and internal energy (U) can be described with which of the following?a. q = ΔU × wb. ΔU = qwc. w = ΔUqd. ΔU = q + w

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Thành Đạt 3 years 2021-09-05T00:02:03+00:00 1 Answers 10 views 0

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  1. trucchi
    0
    2021-09-05T00:03:35+00:00
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    Answer:

    d. ΔU = q + w

    Explanation:

    Internal energy is the sum of kinetic energy (which comes from motion of molecules) and potential energy ( which comes from chemical bonds between atoms and other intermolecular forces that maybe present).

    First law of thermodynamics states that: “the change in internal energy of a closed system is equal to the energy added to it in form of  heat(q) and work (w) done on the system by the surroundings.

    Mathematically written as:

    E_{internal} = q + w

    Conventionally, the first law is based on the system doing work and the surrounding doing work.

    E_{internal} can also be written as ΔU.

    Therefore E_{internal} = ΔU = q + w

    ΔU = q + w

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