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Problem 1: A Carnot cycle operates in a closed system using steam: saturated liquid at 20 bar (state A) is heated isothermally until it becomes saturated vapor (state B), expanded by reversible adiabatic process to 10 bar (state C), partially condensed to state D, and finally compressed by reversible adiabatic process to initial state A. a) Obtain the properties (T, P, V, U, H, and S) at the four states, A, B, C, and D, and summarize the results in a table. b) Calculate the amount of heat and work involved in each of the four legs of the process. c) Calculate the net amount of work that is produced. d) Calculate the ratio of the network over the amount of heat absorbed at the high temperature of the cycle. How does this value compare to the theoretical efficiency of the Carnot cycle that is calculated based on the two operating temperatures?
If a mixture of 5.0 g of hydrogen and 10. g of methane is burned, and the heat released is transferred to 50.0 g of water at 25.0C, what final temperature will be reached by the water?
Determine the energy needed to quench a hot gas with water, Assume we have a 100,000 cubic foot per minute gas (air) stream at 700 degrees F that goes to an air pollution control device
The following sequences of reactions are to occur in a constant density reactor. Which type of continues flow-reactor would be best to maximize the selectivity for product C?
using the concept of a mass balance describe how environmental engineers and scientists model the carbon cycle in the
If 2.00 MNaOH is available, how would the student prepare the solution? To help insure three significant figures in the NaOH molarity, to how many significant figures should the volumes and mass be determined?
Given the following experimentally determined standard molar entropies at 298.15 K and 1 bar, S [CH3OH]=126.8 J⋅K-1⋅mol-1 S°[CO]=197.7 J⋅K-1⋅mol-1
What is annihilation in terms of nuclear processes? Also, what are transuranium elements and how are they synthesized? Scientists have estimated that the earth's crust was formed 4.3 billion years ago.
two important allotropes of elemental phosphorus are white phosphorus and red phosphorus a. why should gloves be worn
mole of oxygen in the exhaust gas per unit weight of fuel. e- mole of water vapour in exhaust gas per unit weight of fuel.
Calculate the mass percent of magnesium chloride in the mixture. Determine the minimum volume of silver nitrate that must have been added to ensure complete formation of the precipitate.
The recovery of each main component in each product is to be 98%. For example, 98% of the propane in the feed stream is to appear in the propane-rich product, and 98% of the combined pentanes in the feed stream is to appear in the bottoms product ..
Calculate the volume of 0.25 M NaI that would be needed to precipitate all the g2+ion from 45 mL of a 0.10 M Hg(NO3)2 solution according to the following reaction:
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