(very off topic)- Need help with chemistry...
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Ax4x Cowboy
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(very off topic)- Need help with chemistry...
hey guys, i was wondering if there is any uni/college students out there or anyone who has a good idea about chemistry and could help dumb this down, (a lil) for me as my chemistry teacher is useless and i am invisble to him.
i've read a few sites but i can't understand it, mainly the equations
it's on >>Collision Theory<<
if anyone can ehlp, that'd be great, its for an assingment
cheers
i've read a few sites but i can't understand it, mainly the equations
it's on >>Collision Theory<<
if anyone can ehlp, that'd be great, its for an assingment
cheers
Re: (very off topic)- Need help with chemistry...
Haven't done chemistry for a couple of years now but I can remember some of it.
Perhaps you could post up an example of a question you get stuck on?
Perhaps you could post up an example of a question you get stuck on?
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Ax4x Cowboy- TORA Race Number : 259
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Re: (very off topic)- Need help with chemistry...
I'm doing A-level Chemistry & Physics at sixth form (same as college) I'll try my best here:
For a Chemical reaction to happen, the reactant particles need to collide. But there must be enough energy in the collision in order to produce the reaction. The rate of reaction depends on how successful the collisions are. More successful collisions = faster rate of reaction. Less successful reactions = slower rate of reactions
I believe that is collision theory in a nutshell. We haven't gone in to external factors. Such as temperature or concentration.
Try this website, I'm not sure if it'll work in Oz, but worth a try:
http://www.bbc.co.uk/schools/gcsebitesize/science/ocr_gateway_pre_2011/rocks_metals/7_faster_slower1.shtml
BBC Bitesize is a fantastic website. I always refer to it when I get a bit stuck. I'm stuck on intermolecular bonding & back titrations at the moment
And just out of interest, why did you choose Chemistry (assuming it's not compulsory?)
For a Chemical reaction to happen, the reactant particles need to collide. But there must be enough energy in the collision in order to produce the reaction. The rate of reaction depends on how successful the collisions are. More successful collisions = faster rate of reaction. Less successful reactions = slower rate of reactions
I believe that is collision theory in a nutshell. We haven't gone in to external factors. Such as temperature or concentration.
Try this website, I'm not sure if it'll work in Oz, but worth a try:
http://www.bbc.co.uk/schools/gcsebitesize/science/ocr_gateway_pre_2011/rocks_metals/7_faster_slower1.shtml
BBC Bitesize is a fantastic website. I always refer to it when I get a bit stuck. I'm stuck on intermolecular bonding & back titrations at the moment
And just out of interest, why did you choose Chemistry (assuming it's not compulsory?)
Ax4x Kane-
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Re: (very off topic)- Need help with chemistry...
I think my chemistry knowledge from 1st year uni is good enough to answer this. Basically exactly what kilroy said and the following.
When you add external factors to the reaction like heat, a catalyst, or even something simple like stirring or shaking, it essentially kicks the particles butts into moving faster. When the particles move faster it takes less time for the particles to make contact, and because they are moving faster, the impact force is greater, resulting in a "better collision" or simply a better reaction.
That's why in a lot of real world applications like in manufacturing, you have to combine the chemicals in a certain way to produce the result.
I hope this helped.
When you add external factors to the reaction like heat, a catalyst, or even something simple like stirring or shaking, it essentially kicks the particles butts into moving faster. When the particles move faster it takes less time for the particles to make contact, and because they are moving faster, the impact force is greater, resulting in a "better collision" or simply a better reaction.
That's why in a lot of real world applications like in manufacturing, you have to combine the chemicals in a certain way to produce the result.
I hope this helped.
Re: (very off topic)- Need help with chemistry...
Oh and when you increase the concentration, you are basically adding more of the relevant particles to the reaction and therefore it takes less time for the reaction to occur.
Re: (very off topic)- Need help with chemistry...
I study materials as part of my Engineering course at uni (2nd year MEng), and I did Chemistry at Higher Level (Equivalent to A Level in England) and Physics at Advanced Higher Level.
It's all about energy. Heat is energy. When you heat a substance up, you are supplying the substances atoms with energy. This new energy in the substance makes the atoms move around faster, or vibrate. This makes it more likely for atoms to bump into each other (and thus more likely to react with each other)
For example, say there are 20 people in a room walking around slowly in all kinds of directions, nobody is really going to bump into each other, and if they do, they won't cause much damage. But if everyone starts running around in random directions, it's inevitable that people are going to smack into each other.
Basically, the more densely packed the atoms are, and the faster they are moving, the more likely it is that they will hit each other.
Feel free to post up some example questions, I'm more than happy to help out!
It's all about energy. Heat is energy. When you heat a substance up, you are supplying the substances atoms with energy. This new energy in the substance makes the atoms move around faster, or vibrate. This makes it more likely for atoms to bump into each other (and thus more likely to react with each other)
For example, say there are 20 people in a room walking around slowly in all kinds of directions, nobody is really going to bump into each other, and if they do, they won't cause much damage. But if everyone starts running around in random directions, it's inevitable that people are going to smack into each other.
Basically, the more densely packed the atoms are, and the faster they are moving, the more likely it is that they will hit each other.
Feel free to post up some example questions, I'm more than happy to help out!
nickyf1- TORA Race Number : 271
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Re: (very off topic)- Need help with chemistry...
Chemistry/Radcon is my job >.>
AntiLagged- TORA Race Number : 349
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Re: (very off topic)- Need help with chemistry...
really? can you write my assignment
joking of cause
joking of cause
Re: (very off topic)- Need help with chemistry...
Lol, maybe. Though they might criticize you of "American English." I'm either going to finish my degree as Chemical Engineering or Nuclear. Leaning towards Chemical due to a larger field.
AntiLagged- TORA Race Number : 349
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