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Consider a steam power plant that operates between the pressure limits of 10 MPa and 20 kPa. Water enters the pump as saturated liquid and leaves the turbine as saturated vapor. Determine the ratio of the work delivered by the turbine to the work consumed by the pump. Assume the entire cycle to be reversible and the heat losses from the pump and the turbine to be negligible.
39 grams of C6H6 are mixed with 136.6 grams of O2 and allowed to react. How much CO2 could be produced by this reaction?
15.0 moles of gas are in a 8.00 L tank at 21.0C. Calculate the difference in pressure between methane and an ideal gas under these conditions
the pH of a saturated solution of a metal hydroxide MOH is 9.30. calculate the Ksp for the compound
What is the value of at this temperature? 23.15 At this temperature the rate constant for the reverse reaction is 310. . What is for the reaction?
A solution of a dye absorbs light of wavelength 480 nm, and for this absorption, the extinction coefficient is 18600 L/mol/cm. A sample of the dye of unknown concentration is placed in an optical cell of path length 1 cm
A particular gaseous hydrocarbon that is 82.7% C and 17.3% H bymass has a density of 2.33g/L at 23oC and 746 mmHg. What is the molecular formula of this hydrocarbon?
Stoichiometry limiting reagent: find the reagent in excess. then calculate the mass or volume of the products formed.
What is the minimum amount of 6.0 M H2SO4 necessary to produce 20.0 g of H2? according to the following reaction. 2Al(s)+3H2SO4(aq)-->Al2(SO4)3(aq)+3H2(g)
The delta G for the reaction is 2.60 kj/mol at 25 degrees C. The initial pressures are P H2 = 3.34 atm, P I2 = 0.024 atm and P HI = 0.24 atm.
What is the molality of a solution prepared by dissolving 10.0 grams of methylamine, CH3NH2, in 50.0 mL of ethanol, C2H5OH?
Consider the following cell: Pt|H2(g, 0.645 atm)|H (aq, ? M)||Ag (aq, 1.00 M)|Ag(s) If the measured cell potential is 1.20 V at 25 °C and the standard reduction potential of the Ag /Ag half-reaction couple is 0.80 V.
At what temperature will 6.21 g of oxygen gas exert a pressure of 5.00 atm in a 10.0-L container
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