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A steam power plant operates on the Rankine Cycle with Reheat, using the specified conditions below. The streams are labeled as follows: 3 - boiler to turbine 1; 4 - turbine to reheat; 5 - reheat to turbine 2; 6 turbine to condenser; 7 condenser to pump; 8 pump to boiler. Determine the following
(a) The work output of each turbine per kg of steam
(b)The work input of the feedwater pump per kg of circulated water
(c) the flow rate of steam required.
(d) the heat input required in the boiler/superheater and reheater
(e) the thermal efficiency
the conditions are as follows T(3) - 500 C; P(3) - 4 MPa; P(4) - .8 MPa; T(5) - 500 C; P(6) = .01 MPa; n(turbines) - .85; n(pump) - .8; plant capacity - 80 MW
The reaction CH3CH2NO2 + OH- → H2O + CH3CHNO2- obeys the rate law d[A]/dt = -k[A][OH-], where A denotes CH3CH2NO2. It takes 0.5 min for one percent of the A to react at 25°C.
The silicon in the plate is a mixture of naturally occurring isotopes. One of the those isotopes is silicon-30, which has an atomic mass of 29.97376 and a percent natural abundance of 3.10.
What is the lewis structure for HIO3, including lone pairs. Assign formal charges. If a more equally stable resonance exists, draw it(them).
If I add 1.65L to 112g of sodium acetate what is the molality of sodium acetate in the solution
Hydrogen atoms that are bonded to an sp3 hybridized carbon atom normally appear between 0.9 & 1.8 ppm and are said to be shielded
Calculate the energy change for the alternative reaction that yields chlorine sodide (Cl+Na-) . 2Na(s) +Cl2 (g) yeilds 2Cl+Na+(s) Assume that the lattice energy for Cl+Na- is the same as that for Na+Cl-
Oxalic acid is a diprotic acid that occurs naturally in some plants. Calculate the pH and the concentrations of all species present in a 0.72-M solution
A buffer is prepared by dissolving .0250 mol of sodium nitrite in 500 ml of 0.0329 M nitrous acid. Assume no volume change after NaNO3 is dissolved. calculate the pH of this buffer.
which of the following is a neutralization reaction? 2no2 --> 2no-> + 02, h2o+so3-->h2so4, hno3 +koh-->h2o+kno3, 4na+o2 --> 2na2o, kcl+nano3--> kno3 + nacl
Calculate OH- of each aqueous solution using the following H3o+ a. 1.0 X 10-7m in OH- b.1.0 x 10-5 in OH-
A piece of silver of mass 362 g has a heat capacity of 85.7 J/C (celsius degrees). What is the specific heat of silver?
provide reaction mechanisms for the formation of each of these byproducts and specify whether the mechanisms you write are SN1, SN2, E1, E2, or none of these. explain why you would expect bisulfate to be a good leaving group for substitution or eli..
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