Apply First Law of Thermodynamics to Various Thermal Processes - Self Assessment A to B: straight line P A Part A B D isotherm A to B: How much work is done by the gas in this process? Include a proper sign. Keep 1 digit after the decinal point, in Joules The parameters are: ? PA = 4.6x106 Pa , PB = 3.68×106 Pa, From point A to B W AtoB = |11040 J PD = ?, Pc = 1.9x106 Pa, work VA = 1.2x10-3 m³ , VB = 3.6x10-3 m³ , Submit Previous Answers Request Answer Vp = 1.2x10-3 m³ , Vc = 3.6×10-3 m3 X Incorrect; Try Again; 3 attempts remaining

In an engine, an almost ideal gas is compressed adiabatically to half its volume. In doing so, 2710 J of work is done on the gas. Part A ▼ How much heat flows into or out of the gas? Express your answer with the appropriate units. ? Q = Value Units Submit Request Answer Part B What is the change in internal energy of the gas? Express your answer with the appropriate units. HẢ ? AU = Value Units Submit Request Answer

5. For a system, the thermodynamic as)vn energy U is defined as a function of S, V, and n which is U(S,V,n) = kn3V 3e3nR %3D where S is the entropy, V is the volume, n is the number of moles, K is the constant, and R is the gas constant. Determine a. Based on the theory in Thermodynamics, (), T = Determine, b. Based on the theory in Thermodynamics, Pressure P = . S,n 5/8 Determine c. Determine ne d. Determine dU in dS, dV and dn

2 What is the thermal efficiency for the heat engine illustrated on the pV diagram below? The gas is monatomic p(Pa) 10 V(m³) 7 3

An ideal gas is heated from 25.0°C to 335°C under a constant pressure of 2.81 kPa. i. If its initial volumeis 1.45m?, what is its final volume? ii. If the change in internal energy is 5.84kJ, how much heat is added to the gas? Assume any kinetic and potential energies are negligible. ii. What type of a process is this? Given: • Energy balance on a closed system at steady state AU + AE + AE, = Q – W, where U stands for internal energy, E for kinetic energy, E, for potential energy, Q for heat flow and W for work done by the system. PV = nRT, R = 8.314 = 8.314: T(K) = T(°C) + 273.15; 1N = 1 m: 1 Pa = 1. m³Pa mol K mol K %3D Constant P: W = P(V; - V.); Constant T: W = NRTIN

Q1) 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…

A merry-go-round turns at a constant rate of 6 complete rotations per minute. What is its angular speed in radians per second? A. 6л rad/s B. π/10 rad/s С. π/5 rad/s D. 6.0 rad/s O A OB

Consider ? = 5.00 mol of an ideal diatomic gas successively undergoing each one of the following thermodynamic processes:I. An adiabatic compression from an original volume of 0.150 m3to final volumeof 0.120 m3reaching a temperature of 293.0 K.II. An isothermal expansion to the original volume.III. An isochoric cooling to the original state. A) Draw a pressure-volume diagram showing all these processes.B) Calculate the pressure and temperature for each of the missing principal states.