Search results

can someone explain how they would explain this dotpoint. I find it confusing, because according to me :p the Haber process isn't about a delicate balance involving whatever, it involves a delicate balance between maximum yield and optimum reaction rate: explain why the Haber process is...

flash point the lowest temperature at which a volatile fuel produces enough vapour to form an explosive mixture when it comes in contact with a flame. so the lower the flash point, i.e. the temperature, the more dangerous is the fuel...but also means that the fuel will combust more readily...

so basically a buffer system is just an equilibrium system, only a special case (comparable amounts of weak acid and its conjugate base) k then.thanks

q 14 2001 well, basically the angle between the current I and the magnetic field B in diagram X is not changing even thought the thing is rotating... but in diagram Y, the angle between the current I and the magnetic field is changing, as the thing rotates in a circle... hence for P...

i think she means we don't have to talk about them at all

sepulchres is correct, in my opinion. not all plants have the ability to convert atmospheric nitrogen into a form that can be readily taken into their metabolism. Furthermore, even when there are plants that can do so, soil often needs to be placed with nitrate fertilisers because of the...

well, arguing for or against it would be a matter of what the question asks, as there are both advantages and disadvantages of the wide use of ethanol as an alternative fuel. as u said, there are instances where the move to ethanol as a complete fuel on its own has been disastraus, such as...

are we talking about the core or the option? :p ummm yeah but still.. i mean like u could write everything u know about the topic, but then if u start to just write everything because, say, ur not sure wot the marking guidelines are, then some examiners might see the answer as not being...

saying there is more deposit on this nail than this nail... and using that as ur result would not constitute a quantitative experiment. it needs actual numbers, numerical data. the very use of the term 'more' indicates relativity (not physics) and it doesn't provide absolute 'proof' that...

cant relli do that in the hsc... i mean u could but its recommended that u dont exceed the lines too much more chances of contradicting urself too...and it mite piss off markers too - not answering question etc personally the lines they give is bs. what about those with massive handwriting?

that is the quantitaive measurement of rate of corrosion... the rate at which the mass decreases... it can be measured

well not relli. you would have been equal first :P

k cool. dreamerish, u seem to be very learned in chemistry. how did u go in ur trials?

i thought so, considering its not in the silly bus - so no need to know like how they ACTUALLY polymerise ethene...i.e. the industrial equipment, conditions etc?? just the chemistry behind it? but all my friends have got notes on LDPE and HDPE, and ziegler-natta catalysts and what not...

when it says steps in the production of... what are the steps? is it like initiation, propagation, termination or pressurise ethene to make liquid, add catalyst in a vessel... blabla like that which is it? i.e. what are the steps oh and does that mean we have to talk about LDPE and...

biomass refers to compounds, usually organic, that are found in or derived from living things, e.g. cellulose from plants, ethanol isn't really in a living system but, like we have seen, it can be manufactured from the fermentation from glucose which is found in plants as well... in the form of...

moving clocks run slow time on earth actually passes quicker than time on spaceship because spaceship is not an inertial frame of reference...hence it's not relli a paradox - i.e. yes, clock runs slower on the spaceship than on earth. since this is the case, on earth it would seem that...

well acc to my method i get X being the negative end, as well... we probably are thinking of different things :P but one point id like to make: its not like oh this hand rule gives the direction of current or what not... even the standard right hand rule which is ubiquitous, can give the...

rofl. the thought of spilling an acid or base on ur skin, and then adding some other base or acid amuses me... :D oh yeah, and as for the query, u could mention using an amphiprotic powder, such as sodium bicarbonate, that is cheap, viable and can be used equally effectively for both acid and...

well in answer to the original query, i think it is a major limitation to its wide use. the prohibitive cost and the advanced technology to establish such a system widely as well as the expenses in maintaining the material near critical temperatures is a sure limitation... and yes, there...