An average car consumes about 5L of gasoline a day, and the capacity of a car...

 

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An average car consumes about 5L of gasoline a day, and the capacity of a car is about 50L. Therefore, the car need to be refuelled once every 10 days. The density of gasoline ranges from 0.68 kg/L to 0.78 kg/L (convert to kg/m), and its lower heating value is 44, 000 kJ/kg (44,000 kJ of heat is released when 1 kg of fuel completely burned). Determine a. The fuel consumption per day b. The energy supplied to the car per day Question 4 (Ans: 3.75 kg/day) (Ans: 165000 kJ/day) A site evaluated for a wind farm is observed to have steady winds at a speed of 8.5m/s. Determine the wind energy, a. Per unit mass b. For a mass of 10 kg c. Per second for a flow rate of 1154 kg/s of air. (Ans: 36.1 kJ/kg) (Ans: 361 kJ) (Ans: 41.7 kW) Question 5 A rigid tank contains a hot fluid that is cooled while being stirred by a paddle wheel. Initially, the internal energy of the fluid is 800 kJ. During the cooling process, the fluid losses 500 kJ of heat and the paddle wheel does 100kJ of work on the fluid. Determine the final internal energy of the fluid. Neglect the energy stored in the paddle wheel. (Ans: 400 kJ) An average car consumes about 5L of gasoline a day, and the capacity of a car is about 50L. Therefore, the car need to be refuelled once every 10 days. The density of gasoline ranges from 0.68 kg/L to 0.78 kg/L (convert to kg/m), and its lower heating value is 44, 000 kJ/kg (44,000 kJ of heat is released when 1 kg of fuel completely burned). Determine a. The fuel consumption per day b. The energy supplied to the car per day Question 4 (Ans: 3.75 kg/day) (Ans: 165000 kJ/day) A site evaluated for a wind farm is observed to have steady winds at a speed of 8.5m/s. Determine the wind energy, a. Per unit mass b. For a mass of 10 kg c. Per second for a flow rate of 1154 kg/s of air. (Ans: 36.1 kJ/kg) (Ans: 361 kJ) (Ans: 41.7 kW) Question 5 A rigid tank contains a hot fluid that is cooled while being stirred by a paddle wheel. Initially, the internal energy of the fluid is 800 kJ. During the cooling process, the fluid losses 500 kJ of heat and the paddle wheel does 100kJ of work on the fluid. Determine the final internal energy of the fluid. Neglect the energy stored in the paddle wheel. (Ans: 400 kJ)

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Lets break down each question step by step Question 4 Given Average car consumes 5L of gasoline per day Cars capacity is 50L assuming you meant 501L D... View the full answer