3. In Deacon's process, hydrogen chloride is heated with oxygen or air in the presence of a catalyst: 4HCI +0,2 N,0 +2 C, When pure axygen is used in stoichiometric amount the equilibrium conversion of hydrogen chloride is 85% at 600K and 61% at 80OK, bodh at one bar. Listing your assumptions, find as mach about the reaction thermodynamics as you can Thus find the equilibrium conversion at 700K and 10 bar when hydrogem chloride and air are used in stoichiometric amounts (i)

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Chapter1: Chemical Foundations
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3. In Deacon's process, hydrogen chloride is heated with axygen or air in the presence of a
catalyst:
4HCI +0, 2 H,0 +2 Cl,
When pure oxygen is used in stoichiometric amount the equilibrium conversion of hydrogen
chloride is 85% at 600K and 61% at 800K. both at cne bar.
(1)
Listing your assumptions, find as mach about the reaction thermodynamics as you
can;
(i)
Thus find the equilibrium conversion at 700K and 10 bar when hydrogen chloride
and air are used in stoichiometric amounts.
4. The equilibrium constant of a chemical reaction involving only gaseous species is usually
expressed as K, defined in terms of the partial pressures or fugacities of the reactants and
products.
(i)
(i)
Briefly describe how equilibrium position might vary with pressure;
Estimate the standard free energy of gascous nitric oxide at 298 K, using the data
below,
(ii)
In the calculation, why is it reascnable to assume ACp is negligible?
Data
TIK)
NO (vol %)
1811
0.37
1877
0.42
2033
0.64
2195
0.97
2580
2.05
2675
2.23
Transcribed Image Text:3. In Deacon's process, hydrogen chloride is heated with axygen or air in the presence of a catalyst: 4HCI +0, 2 H,0 +2 Cl, When pure oxygen is used in stoichiometric amount the equilibrium conversion of hydrogen chloride is 85% at 600K and 61% at 800K. both at cne bar. (1) Listing your assumptions, find as mach about the reaction thermodynamics as you can; (i) Thus find the equilibrium conversion at 700K and 10 bar when hydrogen chloride and air are used in stoichiometric amounts. 4. The equilibrium constant of a chemical reaction involving only gaseous species is usually expressed as K, defined in terms of the partial pressures or fugacities of the reactants and products. (i) (i) Briefly describe how equilibrium position might vary with pressure; Estimate the standard free energy of gascous nitric oxide at 298 K, using the data below, (ii) In the calculation, why is it reascnable to assume ACp is negligible? Data TIK) NO (vol %) 1811 0.37 1877 0.42 2033 0.64 2195 0.97 2580 2.05 2675 2.23
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