Thanks for the feedback, i shall implement it next timeThis is pretty amazing! 4.9/5
I would add a little more to the negatives of using it as you only dedicate one sentence about them to the response, which is mostly an analysis of the pros and cons. Doubt it would impact your mark but it's just a suggestion. Well done
D
Heheh no worriesthankyou
We've exhausted every single question.
I can't think of anything that we haven't already asked
Heheh no worries
I know right! Ooh here's one for anyone who feels like English is draining the lyf out of them!
Evaluate the historical significance of the Haber-Bosch (<-- tehe) process and the optimal reaction conditions. (5 marks)
ooh great! 5/5
The Haber-Bosch process produces ammonia industrally, rather reliance on guano deposits in Chile. Haber's discovery of how to produce ammonia in the lab was significant as it extended Germany's war efforts and provided a source of fertilizer to ensure crop growth and prevent starvation across the nation of Germany. Haber's discovery was significant as the allies of Chile (British) prevented Germany from attaining guano to produce explosives. Fritz discovery continued Germany's war efforts, extending it for over 5 years. Bosch was responsible for the production of ammonia on an industrial scale. The production of ammonia is based on fine delicate compromise conditions.
Increasing the temperature and the pressure of the equilibrium reactions, increases the rate of reaction as there is more kinetic energy provided for successful collisions to occur. However, increasing temperature according to LCP shifts equilibrium to the left, favouring the production of reactants, and thus minimising the yield produced. Thus a compromise condition of 400-500 degrees celsius is enforced for maximum yield production at a reasonable rate. Magnetite is used as a catalyst to allow for lower temperatures to be used and to increase the rate of the reaction. Increasing the pressure would increase the yield as equilibrium shifts to the right because of the ratio of mols of gases being 4 to 2, where it shifts to the side with the lowest number of moles. However, increasing pressure beyond a compromise condition of 200 atmospheres is costly and surfaces numerous safety hazards such as the possibility of the reaction vessel exploding, spreading shrapnel at high speeds. Ammonia can also be removed while it's being produced, to cause equilibrium to shift to the right and produce more ammonia.
Evaluation - The Haber-Bosch discovery has been extremely significant not only during the 20th Century, but also today. This process allowed for ammonia to be produced in an industry, rather than reliance on natural products such as guano (bird droppings) and with the growing population, guano wouldn't suffice. The advent of this process, prevented starvation as in continuing to provide crop growth.
m9.... if you get 90 that means I get 20.hahaha i won't get a state rank
i am hoping i scrape a 90
haha you'll get a higher mark than me. I think SSH will SR.ooh great! 5/5
I'm trying to think of other harder questions...hmm
m9.... if you get 90 that means I get 20.
haha but you're only what lyk 3-5 marks from 1st so you have a very good chance at state rank!
lol can confirm this wont happen. I'm lyk 6th and my cohort will drag down heaps ahahah
Hahaha I fucking hate our school
I know right, fking dropkicks that don't do any shit and then wonder why they get mystery marks :/
ikr band 7 student ryt here ^
ty u deer vry mch
square out
Chlorofluorocarbons due to their extremely stable structure are hard to get rid of from the atmosphere. Individual's have taken steps such as the Montreal Protocol in 1987, reducing CFC emissions by banning it's use. The western world along with European countries signed to banning the use of these chemicals, with some developing countries such as China, were given a later date of 2010 to comply with. Scientists are reliant on methane produced from animals to remove the CFC's from the atmosphere.
would give maybe 4/5Chlorofluorocarbons due to their extremely stable structure are hard to get rid of from the atmosphere. Individual's have taken steps such as the Montreal Protocol in 1987, reducing CFC emissions by banning it's use. The western world along with European countries signed to banning the use of these chemicals, with some developing countries such as China, were given a later date of 2010 to comply with. Scientists are reliant on methane produced from animals to remove the CFC's from the atmosphere.
Emissions are reduced through bans, and any country suspected of producing/using CFC's face the international court with possible fines of billions of dollars.
CFC's were replaced with HCFC's for a temporary amount of time and although the bonds broke quickly in the troposphere, some managed to escape into the stratosphere. 10% of ozone depletion is caused because of HCFC's. HCFC's were then replaced with hydrofluorocarbons, which despite posing more threats such as it's flammable it is much safer to use in the environment as it causes NO ozone depletion. The C-F bonds are easily broken in the troposphere and even if they reach the stratosphere, they cause no harm as fluorine is ozone friendly. Today, some HFC's are still in use. Better replacements were continuing to come into place such as Hydrocarbons, which pose no threat to the ozone concentration in the stratosphere.
Evaluation - steps taken to reduce CFC emissions have been effective such as banning it's use, however tonnes tonnes of CFC's remain in the atmosphere and scientists are unable to get rid of them and are relying on natural methane to dispose of it.
Evaluation of each step is weird