Question: A heat engine with a thermal efficiency of 25% is used to hoist 2.5-kg bricks to an elevation of 3.0 m. If the engine expels

A heat engine with a thermal efficiency of 25% is used to hoist 2.5-kg bricks to an elevation of 3.0 m. If the engine expels heat to the environment at a rate of 1.2 x 106 J/h, how many bricks can the engine hoist in 2.0 h?

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Only 25 of the heat input is converted to work so 75 is wasted 075 Q in t Q out t 12 10 6 ... View full answer

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