# Binding energy Help!

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#1
Stuck on how to complete part c)ii

Here is what I have done for the previous parts in case needed.
I have made an attempt at part c)ii but got the incorrect value

Any help would be great, Thanks!
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#2
Wait I think I have solved part c)ii

For latent heat of vaporisation. I converted it from kJ/kg into kJ/mol which led me the following... (also I misinterpreted that values before and took latent heat to be 296,000,000 J/kg and not 293,000 J/kg)

There's also a part d) to this question but I'm struggling on how to answer part d)ii ! Could anyone please give me some starters on how to tackle this bit?

I believe I have done d)i fine

Thanks
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11 months ago
#3
(Original post by Yatayyat)
Wait I think I have solved part c)ii

For latent heat of vaporisation. I converted it from kJ/kg into kJ/mol which led me the following... (also I misinterpreted that values before and took latent heat to be 296,000,000 J/kg and not 293,000 J/kg)

There's also a part d) to this question but I'm struggling on how to answer part d)ii ! Could anyone please give me some starters on how to tackle this bit?

I believe I have done d)i fine

Thanks
First of all, I don't see why you cannot answer part (d)(ii).
Maybe forget what to do or have just go through the motion of doing the maths to get the answer or have not really made an effort to understand the method of answer and problem.
Why do I have such a comment?
Someone in the forum had guided you to attempt a similar problem a few weeks ago. Having done it correctly a few weeks ago under the guidance of someone but cannot do the question now. What does that imply?
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#4
(Original post by Eimmanuel)
First of all, I don't see why you cannot answer part (d)(ii).
Maybe forget what to do or have just go through the motion of doing the maths to get the answer or have not really made an effort to understand the method of answer and problem.
Why do I have such a comment?
Someone in the forum had guided you to attempt a similar problem a few weeks ago. Having done it correctly a few weeks ago under the guidance of someone but cannot do the question now. What does that imply?
Ok I will admit that I have been rushing the Q and not realising why each step is done and for what reason. I have looked past at my previous workings a while ago and have come into doing this for part d) ii

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