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jm01 · 3 Jul 2009, 3:57 PM

Hi, I have 3 M/C questions below. Could someone please do them for me, and tell me why that answer is correct? Thanks

Ammonia is produced using the Haber process. Which statement below is correct?
(A) More ammonia is produced by heating the reaction vessel.
(B) More ammonia is produced by adding a catalyst.
(C) Less ammonia is produced by removing CO2 and O2 from the reactants.
(D) More ammonia is produced by increasing pressure.

Which of the following reactions needs to be monitored the closest?
(A) Burning wood.
(B) Diesel used in cars as a fuel.
(C) Production of vinyl chloride from ethylene, oxygen, chlorine using a catalyst.
(D) Production of ethanol by fermentation.

What is the main cause of sulfur dioxide reaching the atmosphere?
(A) Roasting sulfide ores
(B) Burning coal in power stations.
(C) Combusting petrol in petrol engines
(D) Volcanic activity and geothermal hot springs.

3 Jul 2009, 3:57 PM	#1 (permalink)
jm01 Fat Donuts HSC: N/A Gender: Undisclosed Join Date: Apr 2007 Posts: 1,240 Last Activity: Today, 12:36 AM	Chem Mon M/C questions Hi, I have 3 M/C questions below. Could someone please do them for me, and tell me why that answer is correct? Thanks Ammonia is produced using the Haber process. Which statement below is correct? (A) More ammonia is produced by heating the reaction vessel. (B) More ammonia is produced by adding a catalyst. (C) Less ammonia is produced by removing CO2 and O2 from the reactants. (D) More ammonia is produced by increasing pressure. Which of the following reactions needs to be monitored the closest? (A) Burning wood. (B) Diesel used in cars as a fuel. (C) Production of vinyl chloride from ethylene, oxygen, chlorine using a catalyst. (D) Production of ethanol by fermentation. What is the main cause of sulfur dioxide reaching the atmosphere? (A) Roasting sulfide ores (B) Burning coal in power stations. (C) Combusting petrol in petrol engines (D) Volcanic activity and geothermal hot springs.