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(Problems from Chapter 15 Problem 15.30 I Revie V Part A A heat engine uses a heat source at 580 C and has an ideal

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(Problems from Chapter 15 Problem 15.30 I Revie V Part A A heat engine uses a heat source at 580 C and has an ideal Carnot efficienc of 27 . ( ) y % To increase the ideal efficiency to 40 % , what must be the temperature of the heat source? Express your answer using two significant figures. m muest Answer Provide Feedback

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