- Messages
- 515
- Reaction score
- 1,447
- Points
- 153
ya surecould you leave a comment at that blog. this would remind me to solve this question. it's not yet solved there.
We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
Click here to Donate Now (View Announcement)
ya surecould you leave a comment at that blog. this would remind me to solve this question. it's not yet solved there.
Please anyone.. help mePlease make me correct. I dunno that i make it right.
It is question Q7 b(ii)..
http://maxpapers.com/wp-content/uploads/2012/11/9702_s14_ms_41.pdf
View attachment 53660
I thought it was goodmeee how did you find it. I found it quite difficult
I attached a graph in my previous post. Dunno is it right or wrong..
The mean kinetic energy of a molecule of an ideal gas is given by the expression
KE = 3/2 x k x T
where k is the Boltzmann constant and T is the thermodynamic temperature of the gas. A cylinder contains 1.0 mol of an ideal gas. The gas is heated so that its temperature changes from 280 K to 460 K. (i) Calculate the change in total kinetic energy of the gas molecules.
http://www.sheir.org/a-level-physics-43-nov2013.pdf
November 2013, 43, Question 2(B)
Could someone please explain the changes in the formula for this answer, I don't understand the markscheme.
http://physics-ref.blogspot.com/
This website does not have the solution for this variant.
The Eqn KE= 3/2(k)(T) is for a single molecule only, you need the change in KE of all the molecules.
So Total KE change = 3/2(1.38 x 10^-23)(460-280) (6.023 x10^23)= 2240 J
We multiplied by Na(Avogadro's number) because there is 1 mol of the gas, so there is this much molecules.
This just copied the mark scheme - I can't understand it. Thanks for sharing though.
Could someone please draw it out for me?
http://maxpapers.com/syllabus-materials/physics-9702-a-level/attachment/9702_w12_qp_41/
Can you please help me with Q9.?
http://maxpapers.com/syllabus-materials/physics-9702-a-level/attachment/9702_w12_qp_41/
Can you please help me with Q9.?
thnk u
For almost 10 years, the site XtremePapers has been trying very hard to serve its users.
However, we are now struggling to cover its operational costs due to unforeseen circumstances. If we helped you in any way, kindly contribute and be the part of this effort. No act of kindness, no matter how small, is ever wasted.
Click here to Donate Now