The engine of a large ship does 2.00×108 J of work with an efficiency of 5.00%. (a) How much heat transfer 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?
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The engine of a large ship does 2.00×108 J of work with an efficiency of 5.00%. (a) How much heat transfer 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?
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- A gas is compressed inside a cylinder. An average force of 45 N acts to move the piston 4.7 m. During the compression, 85 J of heat are conducted away from the gas. What is the change in internal energy of the gas? Calculate answer to one decimal.A typical coal-fired power plant burns 340 metric tons of coal every hour to generate 2.5 × 106 MJ of energy. One metric ton has a mass of 1000 kg and a metric ton of coal has a volume of 1.5 m^3. The heat of combustion is 28 MJ/kg. What is the power plant’s efficiency?Consider the change in the internal energy of a system. -What is the change in the internal energy, in joules, of a system that does 4.725 × 105 J of work, while 3.2 × 106 J of heat is transferred into the system and 7.8 × 106 J of heat is transferred from the system to the environment?
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