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11 Nov 2019
1. Consider the following reaction at equilibrium: 2 so, (g) + O2 (g) ê·¼ 2 so, (g) Will the equilibrium concentration of oxygen, O2 increase, decrease or remain the same if: (a) The temperature is increased (b) The volume is decreased (c) The pressure is decreased (d) SO2 is added (e) H2S is added, which reacts with sozi 2 H2S (g) + so, (g) â 3 S (s) + 2 H2O (g) (f) A catalyst is added* *Part (f) is optional and not required for credit on this problem; we will go over it along with the other parts in class on Friday 2. Consider the following reaction at equilibrium 2 CO2 (g) ê·¼ 2 CO (g) + O2 (g) The equilibrium partial pressure of CO(g) can be maximized by carrying out the reaction (choose one answer): (A) at high temperature and high pressure(B) at high temperature and low pressure (C) at low temperature and low pressure (D) at low temperature and high pressure 3. The following reaction: 2 P (s) + 3 H2 (g) 2 PH3 (g) has a standard change in Gibb's free energy, AG of 27.0 kJ (a) Is this reaction spontaneous under standard conditions? How do you know? (b) Calculate the equilibrium constant, K for this reaction at 25°C
1. Consider the following reaction at equilibrium: 2 so, (g) + O2 (g) ê·¼ 2 so, (g) Will the equilibrium concentration of oxygen, O2 increase, decrease or remain the same if: (a) The temperature is increased (b) The volume is decreased (c) The pressure is decreased (d) SO2 is added (e) H2S is added, which reacts with sozi 2 H2S (g) + so, (g) â 3 S (s) + 2 H2O (g) (f) A catalyst is added* *Part (f) is optional and not required for credit on this problem; we will go over it along with the other parts in class on Friday 2. Consider the following reaction at equilibrium 2 CO2 (g) ê·¼ 2 CO (g) + O2 (g) The equilibrium partial pressure of CO(g) can be maximized by carrying out the reaction (choose one answer): (A) at high temperature and high pressure(B) at high temperature and low pressure (C) at low temperature and low pressure (D) at low temperature and high pressure 3. The following reaction: 2 P (s) + 3 H2 (g) 2 PH3 (g) has a standard change in Gibb's free energy, AG of 27.0 kJ (a) Is this reaction spontaneous under standard conditions? How do you know? (b) Calculate the equilibrium constant, K for this reaction at 25°C
Bunny GreenfelderLv2
25 Jul 2019