A very efficient engine has the following characteristics - combustion = 1900$^{\circ}$C, exhaust = 430$^{\circ}$C, 7.0 $\times$ 10⁹ cal of fuel produces 1.4 $\times$ 10⁷ J of work in one hour.What is the output in hp? A) 5.2 hp B) 8.1 hp C) 7.3 hp D) 6.3 hp

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Quizplus · Accepted Answer

1.4 * 10⁷ J of work in one hour = 1.4 * 10⁷ J / 3600 s = 3888.89 W3888.89 W = 3888.89 W * (1 hp / 746 W) = 5.21 hp

A Very Efficient Engine Has the Following Characteristics - Combustion ∘^{\circ}∘

A Very Efficient Engine Has the Following Characteristics - Combustion $^{\circ}$