How much heat, in joules, is transferred into a system when its internal energy decreases by 165 J while it was performing 29.5 J of work? Q = - 189.51
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A: The change in internal energy is given by, ∆U=Q-W
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A: Available Internal Energy = U = 8.0 x 105J
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A: Work, W = 600 JHeat, Q = -9400 JEfficiency, Eff = ?
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A: The given values are,
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A: According to first law of thermodynamics Q = ΔU + W ΔU = change in internal energy W = work done
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- What is the change in internal energy of a system which does 0.42 J of work while 8.87 J of heat transfer occurs into the system, and 8.87 J of heat transfer occurs to the environment? Give your answer in joules.Six grams of liquid X at 35 degrees Celsius are added to 3 grams of liquid Y at 20 degrees Celsius. The specific heat of liquid X is 2 calories per gram per degrees Celsius, and the specific heat of liquid Y is 1 calorie per gram per degree Celsius. Now imagine that liquid X continues to transfer energy to liquid Y 12 calories at a time. How many total transfers would be required to reach a common temperature? 04 O more than S 02800 J of work are done BY a system in a process that decreases the thermal energy of the system by 50 J. How much heat is transferred TO the system during this process? If the system gains heat, answer with a positive number. If the system loses heat, answer with a negative number. (in J) -750 750 -850 -50 0
- To produce 96 hp of mechanical power, an automobile engine requires a supply of heat of 4.91 105 J per second from combustion of the fuel. What is the efficiency of this engine?A system does 3.4 × 104 J of work, and 8.2 × 104 J of heat flows into the system during the process. Find the change in the internal energy of the system.Two distinct systems have the same amount of stored internal energy. Assume 500 J are added by heat to the first system, and 300 J are added by heat to the second system. What will be the change in internal energy of the first system if it does 200 J of work? How much work will the second system have to do in order to have the same internal energy?
- Suppose a woman does 650 J of work and 9250 J of heat is transferred from her into the environment in the process. What is the change in her internal energy, in joules, assuming she does not consume any food? AU= What is her percent efficiency? n (%) = ||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. What mass of fuel is burned in each cycle?