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Engine A, compared to engine B, produces, per cycle, five times the work but receives three times the heat input and exhaust out twice the heat. Determine the efficiency of engine B
    Correct answer is '0.33'. Can you explain this answer?
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    Engine A, compared to engine B, produces, per cycle, five times the wo...
    Let work done by the engine B is WB.

    Let heat input of engine B is Qi,B.
    ⇒ 
    Let heat output of engine B is Q0,B
    ⇒ 
    Work done in an engine is equal to the difference of input heat and output heat.


    ⇒ Efficiency of engine B will be

    The correct answer is: 0.33
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    Engine A, compared to engine B, produces, per cycle, five times the wo...
    Efficiency of an Engine

    Efficiency is a measure of how effectively an engine converts heat energy into useful work. It is given by the ratio of the work output to the heat input. In this problem, we are given the information about two engines, A and B. We need to determine the efficiency of engine B.

    1. Work Output Comparison:
    - Engine A produces five times the work output compared to engine B per cycle.

    2. Heat Input Comparison:
    - Engine A receives three times the heat input compared to engine B.

    3. Heat Exhaust Comparison:
    - Engine A exhausts out twice the heat compared to engine B.

    Efficiency Calculation:

    To calculate the efficiency of an engine, we can use the following formula:

    Efficiency = (Work Output / Heat Input) * 100

    Let's denote the work output of engine B as Wb and the heat input as Qb.

    According to the given information:
    - Work output of engine A = 5 * Work output of engine B = 5Wb
    - Heat input of engine A = 3 * Heat input of engine B = 3Qb
    - Heat exhaust of engine A = 2 * Heat exhaust of engine B

    The net heat supplied to the engine is equal to the heat input minus the heat exhaust. Therefore,
    Heat supplied to engine B = Qb - (1/2) * Heat exhaust of engine B = Qb - (1/2) * (2 * Heat exhaust of engine B)
    Heat supplied to engine B = Qb - Heat exhaust of engine B

    Now, we can rewrite the efficiency formula for engine B:
    Efficiency of engine B = (Work output of engine B / Heat supplied to engine B) * 100

    Substituting the given values, we have:
    Efficiency of engine B = (Wb / (Qb - Heat exhaust of engine B)) * 100

    However, we need to express the heat exhaust of engine B in terms of Qb to simplify the equation.

    Heat exhaust of engine A = 2 * Heat exhaust of engine B
    Heat exhaust of engine B = (1/2) * Heat exhaust of engine A = (1/2) * 2 * Heat exhaust of engine B

    Therefore, Heat exhaust of engine B = Heat exhaust of engine B

    Simplifying the equation further:
    Efficiency of engine B = (Wb / (Qb - Heat exhaust of engine B)) * 100
    Efficiency of engine B = (Wb / (Qb - Heat exhaust of engine B)) * 100

    Using the given information, we can substitute the values:
    Efficiency of engine B = (Wb / (Qb - Heat exhaust of engine B)) * 100
    Efficiency of engine B = (Wb / (Qb - (1/2) * 2 * Heat exhaust of engine B)) * 100
    Efficiency of engine B = (Wb / (Qb - (1/2) * Heat exhaust of engine B)) * 100

    Since the heat exhaust of engine B is equal to the heat exhaust of engine B, we can simplify the equation as follows:
    Efficiency of engine B = (Wb / (Qb - (1/2) * Heat exhaust of engine B)) * 100

    Given that the efficiency of engine B is 0.33 (or 33%), we
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    Engine A, compared to engine B, produces, per cycle, five times the work but receives three times the heat input and exhaust out twice the heat. Determine the efficiency of engine BCorrect answer is '0.33'. Can you explain this answer?
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    Engine A, compared to engine B, produces, per cycle, five times the work but receives three times the heat input and exhaust out twice the heat. Determine the efficiency of engine BCorrect answer is '0.33'. Can you explain this answer? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about Engine A, compared to engine B, produces, per cycle, five times the work but receives three times the heat input and exhaust out twice the heat. Determine the efficiency of engine BCorrect answer is '0.33'. Can you explain this answer? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Engine A, compared to engine B, produces, per cycle, five times the work but receives three times the heat input and exhaust out twice the heat. Determine the efficiency of engine BCorrect answer is '0.33'. Can you explain this answer?.
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