Suppose a heat engine is connected to two energy reservoirs, one a pool of molten aluminum (660°C) and the other a block of solid mercury (238.9°C). The engine runs by freezing 1.0 g of aluminum and melting 15.0 g of mercury during each cycle. The heat of fusion of aluminum is 3.97 x 105 J/kg; the heat of fusion of mercury is 1.18 x 104 J/kg. What is the efficiency of this engine? Select ono:
Suppose a heat engine is connected to two energy reservoirs, one a pool of molten aluminum (660°C) and the other a block of solid mercury (238.9°C). The engine runs by freezing 1.0 g of aluminum and melting 15.0 g of mercury during each cycle. The heat of fusion of aluminum is 3.97 x 105 J/kg; the heat of fusion of mercury is 1.18 x 104 J/kg. What is the efficiency of this engine? Select ono:
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Suppose a heat engine is connected to two energy reservoirs, one
a pool of molten aluminum (660°C) and the other a block of solid
mercury (238.9°C). The engine runs by freezing 1.0 g of aluminum
and melting 15.0 g of mercury during each cycle. The heat of
fusion of aluminum is 3.97 x 105 J/kg; the heat of fusion of
mercury is 1.18 x 104 J/kg. What is the efficiency of this engine?
Select one:
O a. 55.4 %
O b. 63.8 %
O C. 36 %
O d. 28.5%.
ое. 45.2%
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