An egg is placed in boiling water. The egg is the system. Choose the correct answer for each of the 3 quantities: ∆U¬internal, Q (heat), and W (work). So select 3 answers.
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An egg is placed in boiling water. The egg is the system. Choose the correct answer for each of the 3 quantities: ∆U¬internal, Q (heat), and W (work). So select 3 answers.
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∆Uinternal > 0 |
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∆Uinternal = 0 |
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∆Uinternal < 0 |
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Q > 0 |
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Q = 0 |
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Q < 0 |
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W > 0 |
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W = 0 |
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W < 0 |
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- In a process of an ideal gas, the pressure is halved while the volume is kept constant. During this process, 750J of heat flows out of gas. What is the change in the internal energy of the gas in this process?10. A container with a movable piston holds 2.00 moles of a monatomic ideal gas at a pressure of 3.0 × 105 N/m2 in a volume of 0.018 m3 . (a) What is the temperature of the gas? (b) The gas undergoes an isothermal expansion to a volume of 0.027 m3 . How much work does the gas do during this expansion? (c) How much heat flows into or out of the gas during this expansion? Does it flow into or out of the gas?m = 0.593 kg of methanol in atmospheric pressure is heated with an electric heater from T₁ = 30.2 °C to its boiling point. After the heating my methanol is vaporized. Heating and vaporizing takes t = 450.41 s with n=0.59 heater's efficiency. What is the volume of methanol? V = What is the energy required for heating? E₁ = 1 kJ m³ Your last answer was interpreted as follows: 1 What is the energy required for vaporizing? Ev = 1 kJ Your last answer was interpreted as follows: 1 What is the power of the heater? P = 1 с Your last answer was interpreted as follows: 1 Your last answer was interpreted as follows: 1 What is the electr. energy needed for heating and vaporizing? Eε = 1 kJ Your last answer was interpreted as follows: 1 h Do not leave any fields blank. If you don't know the answer, insert 1 for example. Insert the answer with 3 significant digits without rounding the answer. Constant P Tb Value Unit 2.53 1165 786.3 64.7 °C umges Quantity heat capacity kg K kJ kW kg kg LAN Symbol h…
- The heat engine shown in the figure uses 2.0 mol of a monatomic gas as the working substance. (Figure 1) igure p (kPa) 600- 400 200 0 0 0.025 0.050 V (m³) 1 of 1 Part E part. What is the engine's thermal efficiency? Express your answer using two significant figures. η = Submit VE ΑΣΦ Request Answer ? %8.8 J of work expands an ideal gas in a metal piston cylinder in a bucket of ice water from 3.7 cubic centimeters to 9.9 cubic centimeters. How much heat was transferred from the ice water to the gas? If you feel this question is incomplete, please explain HOW it is incomplete.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 heat engine shown in the figure uses 2.0 mol of a monatomic gas as the working substance. (Figure 1) Figure p (kPa) 600 400 200 0 0 0.025 2 3 0.050 ▼ Determine AEth, Ws, and Q for 3→1. Enter your answers in joules and separated by commas. ► View Available Hint(s) AEth, Ws, Q = Submit Part E η = V What is the engine's thermal efficiency? Express your answer as a percentage. ► View Available Hint(s) VG ΑΣΦ Submit ΑΣΦ ? % ? JQuestion 4. A 5.0 kg block of aluminium is heated from 20°C to 90°C at atmospheric pressure. Find (a) the work done by the aluminium, (b) the amount of energy transferred to it by heat, and (c) the increase in internal energy.A solid cylindrical bar conducts heat at a rate of 25 W from a hot to a cold reservoir under steady state conditions. If both the length and the diameter of this bar are doubled, the rate at which it will conduct heat between these reservoirs will be O 12.5 W. O 200 W. O 100 W. O 25 W. O 50 W.
- One mole of an ideal gas, initially at 310 K, is cooled at constant volume so that the final pressure is one-sixth of the initial pressure. Then the gas expands at constant pressure until it reaches the initial temperature. Determine the work done on the gas. -1.93 X kJ Additional Materials eBookAn ISOBARIC process is one in which the PRESSURE REMAINS CONSTANT. Answer the following questions regarding the isobaric process.