and absorbs 70 J of heat. (a) How much heat does the gas exchange along BC? (b) When the gas makes the transition from C to A along CDA, 60 J of work are done on it from C to D. How much heat does it exchange along CDA?
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- A car tire contains 0.0390 m3 of air at a pressure of 2.20×105 N/m2 (about 32 psi). How much more internal energy does this gas have than the same volume has at zero gauge pressure (which is equivalent to normal atmospheric pressure)?It is claimed that a certain cyclical heat engine operates between the temperatures of TH = 460°C and TC = 153°C and performs W = 4.1MJ of work on a heat input of QH = 5.05 MJ. - How much heat, in megajoules, would be discharged into the low-temperature reservoir?When a gas expands along AB (see below), it does 210 J of work and absorbs 560 J of heat. When the gas expands along AC, it does 264 J of work and absorbs 776 J of heat. PA D A (a) How much heat does the gas exchange along BC (in J)? B (b) When the gas makes the transition from C to A along CDA, 318 J of work are done on it from C to D. How much heat does it exchange along CDA (in J)?
- how much heat is needed to increase the internal energy of a gas in a piston by 4322 J if the gas does 952 J of work on the environment by expanding if the process?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?Would you be willing to financially back an inventor who is marketing a device that she claims has 25 kJ of heat transfer at 600o K, has heat transfer to the environment at 300o K, and does 12 kJ of work? Explain your answer.
- Warm winds called Chinooks sweep across the plains ju Mountains. These winds carry air from high in the mountain rapidly enough that the air has no time to exchange heat with a particular Chinook day, temperature and pressure high in the 60 kPa and 265 K, respectively; the plain below is 90 kPa. (a) the plain, does its volume increase or decrease? (b) How about And its internal energy? Please give explanations for all your answersA 1.70-mol sample of hydrogen gas is heated at constant pressure from 302 K to 426 K. (a) Calculate the energy transferred to the gas by heat. kJ (b) Calculate the increase in its internal energy. k] (c) Calculate the work done on the gas. kJA Carnot engine operates between 170°C and 21°C. How much ice can the engine melt from its exhaust after it has done 5.5 ✕ 104 J of work? (The latent heat of fusion for water is 3.33 ✕ 105 J/kg.) kg
- A heat engine produces 2000 J of work while operating between 210 degrees Celsius and 35 degrees Celsius. How much heat (in J) is withdrawn from the hot source to produce this much of work? (Format of final answer should be 1.00x10^2) and Calculate the efficiency of the engine (in percent).A total of a 185 J of work is done on a gaseous refrigerant as it under goes compression, If the internal energy of the gas increases by 160 J during the process. What is the total amount of energy transferred as heat? Has energy been added to or removed from the refrigerant as heat? Show the procedure, result with units and directionAn average force of 64 N acts to move the piston 0.9 m. During the compression, 2 J of heat are conducted away from the gas. What is the change in internal energy (in J) of the gas?