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ITK-234 Termodinamika Teknik Kimia 2 Chemical Equilibria Dicky Dermawan www.dickydermawan.net78.netdickydermawan@gmail.com
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Reaction Coordinate
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If, initially there are 2 mol CH 4, 1 mol H 2 O, 1 mol CO, and 4 mol H 2 :
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Reaction Coordinate
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Reaction Coordinate: Multiple Reactions
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Reaction Coordinate If, initially there are 2 mol CH 4, 1 mol H 2 O, 1 mol CO, and 4 mol H 2 :
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Reaction Coordinate
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Reaction Coordinate & Equilibrium Condition
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Reaction Coordinate & Equilibrium Condition (Cont’)
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Method of Equilibrium Constant For gases: For ideal gases:
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Method of Equilibrium Constant
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Problems
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Problem Hint: Different Way Leads to The Same Results
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Problems
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Calculation of Equilibrium Constant
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Heat Capacity Data - Gases
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Heat Capacity Data - Solid
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Heat Capacity Data - Liquid
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Problems
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Problems
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Problems
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Problems
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Problems
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Problems
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Problems
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Problems
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Problems
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Multiple Reactions A bed of coal (assume pure carbon) in a coal gasifier is fed with steam and air and produce a gas stream containing H 2, CO, O 2, H 2 O, CO 2, and N 2. If the feed to the gasifier consists of 1 mol of steam and 2.38 mol of air, calculate the equilibrium composition of the gas stream at P = 20 bar.
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Multiple Reactions
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Problems
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Problems
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Problems
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Lagrange Multiplier for Complex Reaction First Step: Atomic Balances #2 Step: No. of eqn = no. of involved atom No. of eqn = no. of species involved Use Computer to Solve All The Equation Simultaneously.
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Problem Calculate the equilibrium composition at 1000 K and 1 bar of a gas-phase system containing the species CH 4, H 2 O, CO, CO 2, and H 2. In the initial unreacted state ther are present 2 mol of CH 4 and 3 mol of H 2 O. Assume ideal gases. At 1000 K:
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