Calculate the change in internal energy of the following system: A balloon is cooled by removing 0.653 kJ of heat. It shrinks on cooling, an

Question

Calculate the change in internal energy of the following system: A balloon is cooled by removing 0.653 kJ of heat. It shrinks on cooling, and the atmosphere does 389 J of work on the balloon. Express your answer to three significant figures and include the appropriate units.

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MichaelMet 3 years 2021-08-26T04:06:14+00:00 1 Answers 66 views 0

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  1. Neala
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    2021-08-26T04:07:55+00:00
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    Answer:

    ΔE = ‒0.271 kJ

    Explanation:

    Let’s begin by listing out the given variables:

    q = -0.653 kJ, w = 0.389 kJ

    Using the formula ΔE = q + w

    ΔE = -0.653 + 0.388

    ΔE = (‒0.655 + 0.382) kJ

    ΔE = ‒0.271 kJ

    Therefore, the change in internal energy is -271 J or -0.271 kJ which implies that the system is exothermic

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