From the following figure, calculate the efficiency of the engine containing only the temperature differences for a diatomic ideal gas. b adiabat adiabat d
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- A 2.45 mole quantity of methane gas initially at 315K and a pressure of 12.4atm expands to a final pressure of 0.925atm which is also the constant ext pressure. The expansion occurs adiabatically and reversibly. calculate q, w, deltaH and deltaUCalculate the efficiency of the Carnot engine for ideal gas. Consider the figure below for a complete cycle of Carnot engine, where the cycle goes back from ad->ab->bc->cd Thank you!You have an ideal gas with 1.8 moles. Initally this sample is 187 kPa and 423 K. Heat Capacity at constant presssure is 18.7 J/Kmol. If it undergoed a reversible adiabatic expansion to a temp of 225K. A) what is the final volume? B) what is the final P? C) what is q? D) what is work?
- An insulated and sealed bucket containing 400g of water at25°C was used to carry 70 g of a hot metal bar at 180°C. The final temp. of the mixture was read at 28°C. Compute for the specific heat capacity (s) of the metal.A quantity of 0.277 moles of an ideally behaving gas expands isothermally and reversibly from a volume of 5L to twice that volume at 27 ° C. What will be the value of Q, W, ΔU, and ΔH?What is the heat capacity at constant colume n mole rigid diatomic gas a. 3/2nR b. 5/2nR c. 7/2nR d. 9/2nR
- The Otto cycle, a similar cycle to the Carnot cycle, can be used to describe an internal combustion engine and consists of 4 steps: i. reversible adiabatic compression from A to Bii. reversible constant-volume pressure increase from B to C due to the combustion of fueliii. reversible adiabatic expansion from C to Div. reversible constant-volume pressure decrease back to state A. a) Sketch the four steps of the Otto cycle on pressure and volume axes. Be sure to show the direction of change. b) An engine is operating in the Otto cycle and that Cv = 5/2R for the air-fuel mixture initially at 298 K (temperature of the cold reservoir). What is the maximum theoretical efficiency of this engine if the mixture is compressed by a factor of 7.5 in the adiabatic compression step? Recall that efficiency, ε = 1 – Tcold/Thot. c) How would this efficiency change if the compression ratio could be increased to 25? Is this likely to be a practical possibility?A sample consisting of 1 mol of He gas is initially at 240 kPa and 325 K. It undergoes reversibleadiabatic expansion until its pressure reaches 150 kPa. Using equipartition theorem, find the ??,?,??,? and ?. Calculate the final volume, final temperature and the work done? (Assume it is perfectgas) ? = 5/3.SOLVE THE PROBLEM AND SHOW YOUR DETAILES SOLUTION Ammonia weighing 22kg is confined inside a cylinder equipped with a piston and has an initial pressure of 413 kPa at 38. Suppose 2900 kJ of heat is added to the ammonia until its pressure and temperature are 413 kPa and 100, respectively. What is the amount of work done by the fluid in kJ?(Note: Molecular Weight of NH3 = 17)
- Everything needed is included The heat capacity ratio γ for nitrous oxide (N2O) is approximately 1.275. 5a. Compute the final pressure and the final temperature if 4.0 L of N2O, initially at 1.0 atm and 298 K, is compressed adiabatically and reversibly to a final volume of 0.50 L, assuming it behaves as an ideal gas. 5b. Compute the work w required to accomplish this compression.How would a system undergoing adiabatic reversible expansion be represented by the equation for the First Law? Think about what is changing in order to do work. Which term(s) is/are now zero?Hydrogen sulfide gas is compressed from an initial state of 400 K and 2 bars to a final state of 598 K and 36 bars. Estimate the ΔH using generalized correlations. You may assume that hydrogen sulfide behaves as an ideal gas at the initial conditions with a constant average heat capacity of CP = 19 kJ/mol K.