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2 May, 18:47

A closed system contains propane at 35°c. It produces 35 kW of work while absorbing 35 kW of heat. What is process? the temperature of the system after this process.

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  1. 2 May, 22:04
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    35°c

    Explanation:

    Given data in question

    heat = 35 kw

    work = 35 kw

    temperature = 35°c

    To find out

    temperature of the system after this process

    Solution

    we know that first law of thermodynamics is Law of Conservation of Energy

    i. e energy can neither be created nor destroyed and it can be transferred from one form to another form

    first law of thermodynamics is energy (∆E) is sum of heat (q) and work (w)

    here we know

    35 = 35 + m Cv (T - t)

    35-35 = m Cv (T-t)

    T = t

    here T = final temperature

    t = initial temperature

    it show final temp is equal to initial temp

    so we can say temp after process is 35°c
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