WHERE GAMMA(γ) IS THE RATIO OF SPECIFIC HEATS
thermodynamics (5) Write the first law for a closed system, steady form, ignore kinetic and potential...
a) In thermodynamics, what is the second law efficiency? How does it differ from the first law efficiency? (2 marks) b) Can a system have a higher second law efficiency than the first law efficiency during a process? Give examples (Hint: Consider efficiencies of a reversible cycle). (2 marks) c) An ideal gas is stored in a closed vessel at pressure p and temperature T. If p = po, derive an expression for the specific exergy in terms of T,...
Mechanical Engineering Thermodynamics, ME 200 5- Workshop - Open system first law with Air as an ideal gas Pre-work (1) Write the ideal gas law? (2) What is the value of the universal gas constant in english units (both units: 2 .and... .) (3) What is the ideal gas constant for air (both sets of units)? (4) Write conservation of energy (first law) for an open system (control volume): (5) Write down the options of how to find the value...
True or False (Problems 1 through 10) 1. The change in entropy of a closed system is the same for every process between two specified states 2. The entropy of a fixed amount of an incompressible substance increases in every process for which temperature increases 3. A process that violates the second law of thermodynamics violates the first law of thermodynamics. 4. When a net amount of work is done on a closed system undergoing an internally reversible process, a...
5. Starting with the differential form of the First Law for a closed system, derive the expression to calculate the reversible work required to isothermally compress an Ideal Gas from Ti, Pi to P2. Make sure your answer is in terms of Pi and P2. Show all of the steps in your derivation.
Name Date First Law of Thermodynamics Calculations: Apply the First Law of Thermodynas following problems. 1. 2260 joules of heat is added to a svatem and 1500 2 joules of work is done by the system. What is the change in internal energy of the system? 3500 J of heat is added to a system and 500 is done by the system. What is the change in it energy of the system? 3. 4200 joules of work is done on...
Sample 2 1. Write the I law of thermodynamics. 2. What is the exergonic reaction? 3. Choose the correct answer. The processes of vital functions are a) reversible; b) irreversible; c) in equilibrium. 4. Choose the correct answer. Chemical thermodynamics studies the thermodynamic properties of the substances depending on a)the state, color, structure; b)the state, structure, energy: c) the state, structure, compositions. 5. Standard enthalpy formation of HCl equals -92.05 kJ/mol, HI equals -25.1 kJ/mol. Calculate the standard enthalpy change...
Please help me solve this urgently ( chemical engineering thermodynamics) A. True or False; answ er False() orTrue(T). For those false, please give your explanation. (6%,4% each) 1. For a pure species of one mole of'a closed system, a reversible phase change wben two phases are in equilibrium, then TSS-ΔΗ Fig. 1 Fiz 2 2. In the figure, there is a cyclic process (the big circle!). for this cyclic process, it must be AS-O. (Fig D 3. If the work...
Question B3 (25 Marks Write down a mathematical expression for the First Law of Thermodynamics as applied to steady state, steady flow process, explaining clearly the notation and sign conventions used. (5 marks) Consider steady state, steady flow of steam through a turbine used for electricity generation. You may assume that the process is adiabatic. The steam inlet and exit conditions are; Inlet Exit 15.0 0.01 Pressure (MPa) TemperatureC Velocity (m/s 500 40 80 Fraction 0.92 P, 15.0 MPa T,-500C...
How do i solve C??? Please details Steam enters a two stage steady state turbine at 8 MPa and 500 C. It expands in the first stage to a state of 2 MPa and 350°C. Steam is then reheated at constant pressure to a temperature of 500°C before it enters the second stage, where it exits at 30 kPa and a quality of 98%. The net power output of the turbine is 3 MW Assume the surroundings to be at...
Q1: The difference between a nonflow (closed) and a filow (open) system is that Nonflow system allows mass transfer while flow system does not Nonflow system allows Flow system Flow energy transfer while flow system does not allows mass transfer while nonflow system does not system allows energy transfer while nonflow system does not Q2: For a nonflow system under constant pressure, the heat transfer into the system is ahwa Change of internal energy Change of entropy Change of enthalp...