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Fuel cells produce electricity from hydrogen. The life of the fuel cell depends on produc- ing relatively pure hydrogen. Methane (natural gas) is often used as a feed to produce hydrogen. Consider the production of hydrogen 1 H2 2 by the dissociation of methane 1 CH4 2 into solid carbon (C). The process can be described by the following chemical reactionCH4 1 g 2 dS C 1 s 2 1 2H2 1 g 2
The temperature is 1000 K and the pressure is 1000 Pa. You may assume that D hrxn does not change with temperature.
(a) What is the equilibrium constant at 298 K?
(b) What is the equilibrium constant at 1000 K?
(c) What is the maximum amount of H2 that can be produced per mole of CH4 in the feed?
(d) Why is this reaction run at 1000 K instead of 298 K?
(e) Why is this reaction run at 1000 Pa instead of 1 bar?
Compute the volume in mL of a 1.1 M iron (II) bromide solution that contains 75.0 grams of iron (II) bromide (FeBr2). Round to 2 signings
1. a solution of vinegar has a ph of 2.85. calculate thehydronium ion concentratation and the hydroxide ion
When you are trying to calculate molarity, what volume do you use? I have a final volume of NaOH and an initial Volume and volume of NaOH
At 700 K the equilibrium constant for the reaction CCl4(g) C(s) + 2 Cl2(g) is Kp = 0.76. A flask is charged with 2.00 atm CCl4, which then reaches equilibrium at 700 K.
Why might your sample not have the same melting range as either of the known compounds, given that it must be one of them?
Question- The nuclear fusion of a lithium-7 nucleus and nuclide X releases two alpha particles and a neutron.
calculate the chloride concentration in mEq/L of a solution prepared by diluting 25 g of BaCl2 to 2 L. (WM = 208)
How much energy (heat) is required to convert 248 g of water from 0oC to 154oC? Assume that the water begins as a liquid, that the specific heat of water is 4.184 J/g.oC over the entire liquid range, that the specific heat of steam is 1.99 J/g.oC,
Convert the 5 mM fumaric acid in a waste stream into malate using fumarase immobilized on nonporous spherical particles. The enzyme has a turnover number of 23/sec, and a Km of 1.55 mM. The immobilized enzyme particles are 1 mm in diameter
determine the number of moles of barium chlorate that can be prepared from 1.73 mol of chloric acid hclo3 and
a 26.0 ml sample of a liquid was found to have a mass of 13.0g. what is the density of the liquid?
Most of the solid did not dissolve because the Ksp of ferric hydroxide is very small at 3 x 10^-39. However, when a certain amount of strong acid was added, the entire amount of solid dissolved. Determine the pH of the solution at that point that ..
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