Article name: Thermodynamic Q1- Answers Multiple Choice Questions (MCQs): 1. the temperature is constant, internal energy...
Multiple choice questions (Explanation Requried) (1). The work between two specified states of a closed system is the same regardless of the nature of the system and the pass of the process if the process is (A) Isobaric. (B) Isochoric. (C) Isothermal. (D) Adiabatic. (E) All of the above. (2). For a closed system undergoing a cycle the following may differ from zero… (A) Total energy of the system at any time instant. (B) Change in total energy of the...
For Parts 1 and 2, answer the following multiple choice questions, showing all work to prove the correct answer. Part 1: Choose the incorrect statement. (a) For liquids, the constant-volume specific heat is approximately equal to constant-pressure specific heat. (b) For solids, the constant-volume specific heat is approximately equal to constant-pressure specific heat. (c) The constant-volume specific heat is smaller than constant-pressure specific heat. (d) For ideal gases, cp = cv +R. (e) The specific heat of a substance depends...
Energy balances questions to ensure my answers, thank you. True or False? If the pressure of a solid or liquid does not change at constant temperature, you may write AU(specific) = 0 and AH(specific) = V(specific)AP Select one: O True O False A closed container has initial internal energy E; and final energy Ef. Heat (+Q) and work (+W) are transferred to the system from the surroundings. How are these related? Select one: o a. E; – Ep = Q...
Two Part Thermodynamics Multiple Choice Question Q1a. For an ideal gas in an isothermal system the change in .................. is zero A) Heat B) Work C) Entropy D) Internal Energy Q1b. In a piston with insulated external walls there is a movable (insulated)barrier separating the two halves of the piston. The gas in the left chamber is heated. Which of the following is not correct? A) The temperature in the left chamber will increase B) The pressure in both chambers...
Arigidtankofvolume0.5m3isconnectedtoapiston–cylinderassemblybyavalve,asshown below. Both vessels contain pure water. They are immersed in a constant-temperature bath at 200oC and 600 kPa. Consider the tank and the piston–cylinder assembly as the system and the constant temperature bath as the surroundings. Initially the valve is closed and both units are in equilibrium with the surroundings (the bath). The rigid tank contains saturated water with a quality of 95% (i.e., 95% of the mass of water is vapor). The piston–cylinder assembly initially has a volume...
Pchem help! Multiple Choice Circle the correct answer. (1 pt each) 1. Two gases at the same temperature must have the same: a pressure b. volume c number of molecules d. kinetic energy per molecule e. more than one of these 2. A match is placed in an oxygen-filled cylinder that has a fixed volume. As the match burns, the chamber heats rapidly. What kind of change is demonstrated in this process? a. an isenthalpic change b. an adiabatic change...
1. A gas absorbs 0.0 J of heat and then performs 30.8 J of work. The change in internal energy of the gas is a. 61.6 J. b. 30.8 J. c. -61.6 J. d.-30.8 J. e. none of these 2. Which of the following statements correctly describes the signs of q and w for the following exothermic process at P= 1 atm and T = 370 K? H2O(g) → H2O(1) a. q and w are negative. b. is positive, wis...
1) The internal energy function for a Van der Waals gas with constant cy is UCT, v) = n( cv1-3) where v=Vin is the specific volume. a) Find the change in temperature T-To that occurs in a free expansion when the volume changes from V, to 2V. The initial specific volume is v=25L/mol, the specific heat is Cy=2.5R and the parameter a is a=1.346 atm L-/mol (realistic value for N2 gas, note: latm=1.013 x 10 Pa). VOTO 2V, gas Perfect...
thumbs up for correct answers( please answer all multiple choice questions) 4, Radiation heat transfer is characterized by A) energy transport as a result of bulk fluid motion A) thermal energy transfer as vibrational energy in the lattice structure of the material ) movement of discrete packets of energy as electromagnetic waves D) circulation of fluid motion by buoyancy effects 15. Consider a 0.2m diameter, 1.8 rm long horizontal cylinder in a room at 20°C . If the outer surface...
105Pa, initial temperature T-300K, and an initial 1. An ideal gas with initial pressure 2 volume V - 1m3 expands isothermally to a final volume of 2m3. Then, the gas returns to its initial state, first by constant pressure (isobaric) contraction, and then by a change at constant volume (isochoric) a) Draw a PV diagram of this process. What's the total change in thermal energy of the entire process? b) What's the work done by the environment on the gas?...