A gasoline engine takes in 1.61 * 10^4 Jof heat and delivers 3700 J of work per cycle. The heat is obtained byburning gasoline with a heat of combustion of 4.60 * 10^4 J/g. How much heat is discarded in each cycle?
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A gasoline engine takes in 1.61 * 10^4 J
of heat and delivers 3700 J of work per cycle. The heat is obtained by
burning gasoline with a heat of combustion of 4.60 * 10^4 J/g. How much heat is discarded in each cycle?
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- 3. A multicylinder gasoline engine in an airplane, operating at 2500 rev/min, takes in energy 7.89 x 105 J and exhausts 4.58 × 105 J for each revolution of the crankshaft. (a) How many liters of fuel does it consume in 1.00 h of operation if the combustion of the fuel provides a heat of 4.03 x 107 J/L? (b) What is the mechanical power output of the engine? Ignore friction. (c) What is the torque exerted by the crankshaft on the load? (d) What power must the exhaust and cooling system transfer out of the engine?The water in a deep underground well is used as the cold resevoir of a Carnot heat pump that maintains the temperature of a house at 303 K. To deposit 13000 J of heat in the house, the heat pump requires 716 J of work. Determine the temperature of the well water.The engine of a large ship does 1.90 ✕ 108 J of work with an efficiency of 4.05% (a) How much heat transfer (in J) occurs to the environment? (b) How many barrels of fuel are consumed, if each barrel produces 6.00 ✕ 109 J of heat transfer when burned?
- A pot containing 1.70 kg of water is sitting on a hot stove, and the water is stirred violently by a mixer that does 6.40 kJ of mechanical work on the water. The temperature of the water rises by 4.00°C. What quantity of heat flowed into the water from the stove during the process? The specific heat of water is 4.186 kJ/kg·K.Problem 2: This problem compares the energy output and heat transfer to the environment by two different types of nuclear power stations—one with the normal efficiency of 36 %, and another with an improved efficiency of 47 %. Suppose both have the same heat transfer into the engine in one day, 2.5 × 1014 J Part (a) How much more electrical energy is produced by the more efficient power station? Part (b) What is the change in the heat transfer to the environment after the upgrade to the more efficient power station?You design an engine that takes in 1.50x104 J of heat at 650 K in each cycle and rejects heat at a temperature of 290 K. The engine completes 240 cycles in 1 minute. What is the theoretical maximum power output of your engine, in horsepower? 1 Watt = 1 Joule/s = 0.00134102 horsepower 44.5 hp 15.0 hp 6.50 hp 2.90 hp