17. The first law of thermodynamics for an ideal gas may be stated in the form AU = AQ + AW Which of the following is the most correct statement about the equation? AQ = -AWwhen the temperature A increases slightly. AU = 0 when no heat enters or leaves B the system. C AW is the work done by the gas AU = 0 when the heat is supplied at D constant temperature
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- 16A gas expands from 2.2 L to 3.6 L against a constant external pressure of 1.6 atm. What is the work done? A. -227 J B. 227 J C. 2.24 J D. -2.24 JFrom the perspective of energy efficiency an ideal cooking utensil should not absorb a large part of the thermal energy it receives from the stove. It also should not change its size as it is heated. In terms of the specific heat S and coefficient of thermal expansion a, which choice below satisfies these requirements? Both S and a should be large. Both S and a should have small values. Small S but large a. Large S but small a.
- Which of the following is true about an adiabatic process? Select all those apply. I. It occurs at a constant temperature (AT =0). II. There is no transfer/ exchange of heat (Q = 0) in this process. III. The pressure remains constant. IV. The volume remains constant. V. The adiabatic curve is steeper than the isothermal curve in PV diagram. VI. The isothermal curve is steeper than the adiabatic curve in PV diagram. Answer choices: A. I, II, and V B. I, II, and V C. I, III, and IV D. Il and V E. Il and VIQ1) There are four main thermodynamic processes that you learned from Unit 3: isobaric, isochoric, isothermal, and adiabatic. For each process below, classify it has one of these processes and then determine the signs of Q (the heat energy that flows into the gas), W (the work done by the gas), and AU (the change in internal energy of the gas). a) A container filled with an ideal gas has been submerged in a large water bath for a long time such that both reach thermal equilibrium. You then slowly compress the gas in the container. Assume the container is not well insulted so heat energy can easily flow back and forth between the water and gas and that the water bath is so large that its temperature does not change very much. b) A container filled with an ideal gas has a well-sealed piston that you put a pin in such that it doesn't move up or down. You then put the container over a burner to heat it up. c) A container filled with an ideal gas has a well-sealed piston that can move up or…10-