Question 1 (4 Marks) The following reaction occurs in a system consisting of 2molCH4,1molH2O,2molCO2, and 4 mole H2. 3CH4+CO2+2H2O4CO+8H2 Compute the followings: (a) Overall stochiometric coefficient (v)= ? (b) Expression for more fraction YCH4 as a function of = ? Question 2 The standard Gibbs energy change (G298) at 298.15K for the CO2 methanation reaction is: CO2(g)+4H2(g)CH4(g)+2H2O(l) G298=? Question 3 (2 Marks) The equilibrium constant K value at 625K for the reaction as below is: C+2H2CH4 K=? (a) e=0.40 (b) 0=0.45 (c) e=0.50 (d) Ee -0.55 (c) Ee=0.55 Question 5 (4 Marks) A gas phase reaction was conducted at 500C in a fixed bed reactor at 2 bars. The change in Gibbs energy (G) at this temperature is 1.267104J/mol. Estimate the equilibrium constant K at the operating conditions: (a) 4.65 (b) 3.86 (c) 2.10 (d) 7.18 (e) 3.70 Question 6 (2 Marks) For the following reaction. When the temperature is increased by 1100K to 1650K, what will happen to the equilibrium constant: CO(g)+H2O(g)CO2(g)+H2(g) (a) Decreased (b) Increased (c) Unaffected Question 7 (2 Marks) For the reaction: C3H8(g)C2H4(g)+CH4(g), compute the followings: A=1.913D=0