Physics
7th Edition
ISBN: 9780321625915
Author: Douglas C. Giancoli
Publisher: PEARSON
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Chapter 15, Problem 66GP
The burning of gasoline in a car releases about 3.0 x 104 kcal/gal. If a car averages 41 km/gal when driving 110 km/h, which requires 25 hp, what is the efficiency of the engine under those conditions?
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As a gasoline engine is running, the amount of gasoline containing 15,000J of chemical potential energy is burned in 1 s. During that second, the engine does 3,000J of work. The burning gasoline has a temperature of about 2500 K. The waste heat from the engine flows into the air at about 300 K. What is the Carnot efficiency of a heat engine operating between these two temperatures?
As a gasoline engine is running, an amount of gasoline containing 16,000 J of chemical potential energy is burned in 1 s. During that second, the engine does 4,000 J of work.
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AN IDEAL ENGINE HAS AN EFFICIENCY OF 0.725 AND USES GAS FROM A HOT RESERVOIR AT A TEMPERATURE OF 622K. WHAT IS THE TEMPERATURE OF THE COLD RESERVOIR TO WHICH IT EXHAUSTS HEAT?
Chapter 15 Solutions
Physics
Ch. 15 - Prob. 1OQCh. 15 - hi an isothermal process, 3700 J of work is done...Ch. 15 - Prob. 2QCh. 15 - Prob. 3QCh. 15 - Prob. 4QCh. 15 - An ideal monatomic gas expands slowly to twice its...Ch. 15 - Prob. 6QCh. 15 - Prob. 7QCh. 15 - What are the high-temperature and the...Ch. 15 - Prob. 9Q
Ch. 15 - Prob. 10QCh. 15 - Prob. 11QCh. 15 - Prob. 12QCh. 15 - Prob. 13QCh. 15 - Prob. 14QCh. 15 - Prob. 15QCh. 15 - Prob. 16QCh. 15 - Prob. 17QCh. 15 - Prob. 18QCh. 15 - Prob. 19QCh. 15 - Prob. 20QCh. 15 - Prob. 1MCQCh. 15 - Prob. 2MCQCh. 15 - Prob. 3MCQCh. 15 - Prob. 4MCQCh. 15 - Prob. 5MCQCh. 15 - Prob. 6MCQCh. 15 - Prob. 7MCQCh. 15 - Prob. 8MCQCh. 15 - Prob. 9MCQCh. 15 - Prob. 10MCQCh. 15 - Prob. 11MCQCh. 15 - An ideal gas expands isothermally, performing 4.30...Ch. 15 - Prob. 2PCh. 15 - Prob. 3PCh. 15 - Prob. 4PCh. 15 - A 10-L volume of air initially at 3.5 atm of...Ch. 15 - Prob. 6PCh. 15 - Prob. 7PCh. 15 - Prob. 8PCh. 15 - Prob. 9PCh. 15 - Consider the following two-step process. Heat is...Ch. 15 - Prob. 11PCh. 15 - 12. (Ill) The PV diagram in Fig. 15-23 (? shows...Ch. 15 - Prob. 13PCh. 15 - Prob. 14PCh. 15 - Prob. 15PCh. 15 - Prob. 16PCh. 15 - (a) How much energy is transformed by a typical...Ch. 15 - A heat engine exhausts 8200 J of heat while...Ch. 15 - What is the maximum efficiency of a heat engine...Ch. 15 - The exhaust temperature of a heat engine is 230°C....Ch. 15 - Prob. 21PCh. 15 - A heat engine's high temperature T„ could be...Ch. 15 - Which will Improve the efficiency of a Carnot...Ch. 15 - Prob. 24PCh. 15 - Prob. 25PCh. 15 - Prob. 26PCh. 15 - Prob. 27PCh. 15 - Prob. 28PCh. 15 - Prob. 29PCh. 15 - A heat engine uses a heat source at580°Cand has an...Ch. 15 - A typical compact car experiences a total drag...Ch. 15 - If an ideal refrigerator keeps its contents at...Ch. 15 - Prob. 33PCh. 15 - Prob. 34PCh. 15 - Prob. 35PCh. 15 - Prob. 36PCh. 15 - Prob. 37PCh. 15 - Prob. 38PCh. 15 - Prob. 39PCh. 15 - Prob. 40PCh. 15 - What is the change in entropy of 1.00 m3of water...Ch. 15 - Prob. 42PCh. 15 - Prob. 43PCh. 15 - Prob. 44PCh. 15 - Prob. 45PCh. 15 - Prob. 46PCh. 15 - Prob. 47PCh. 15 - Prob. 48PCh. 15 - Prob. 49PCh. 15 - Suppose that you repeatedly shake six coins in...Ch. 15 - Prob. 51PCh. 15 - Prob. 52PCh. 15 - Prob. 53PCh. 15 - Prob. 54PCh. 15 - Prob. 55PCh. 15 - Prob. 56GPCh. 15 - When 5.80 x 105J of heat is added to a gas...Ch. 15 - Prob. 58GPCh. 15 - Prob. 59GPCh. 15 - Prob. 60GPCh. 15 - Prob. 61GPCh. 15 - Prob. 62GPCh. 15 - Prob. 63GPCh. 15 - Prob. 64GPCh. 15 - Prob. 65GPCh. 15 - The burning of gasoline in a car releases about...Ch. 15 - Prob. 67GPCh. 15 - Calculate the work done by an ideal gas in going...Ch. 15 - Prob. 69GPCh. 15 - Suppose a power plant delivers energy at 880 MW...Ch. 15 - Prob. 71GPCh. 15 - Prob. 72GPCh. 15 - Prob. 73GPCh. 15 - Prob. 74GPCh. 15 - Prob. 75GPCh. 15 - Prob. 76GPCh. 15 - Prob. 77GP
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