Posted by Leila on Wednesday, May 8, 2013 at 5:18pm.
Estimate the total binding energy for copper.
Estimate the energy, in joules, needed to break a 3.0g copper penny into its constituent nucleons.
E= in Joules
Please help me out I got 1st part I need the Energy in joules am confused please help me out...thanks
Physics - Elena, Wednesday, May 8, 2013 at 6:33am
Number of atoms is
N= N(A)m/μ =
Number of nucleons (protons+neutrons) =
Energy = 1.810ē⁴55010⁶1.610⁻đ⁹ =1.5810⁸ J
Thanks for the help but 1.58x10^8 J is wrong n I recalculated you calculation I got 1.58x10^14 J but that was also wrong so could you plz help me out.
Physics to Elena - Elena, Wednesday, May 8, 2013 at 3:16pm
I believe that the correct answer is 1.5810đ⁴ J.
Physics to Elena - Leila, Wednesday, May 8, 2013 at 3:49pm
Thatz what I got too but itz still wrong :/ I don't know why please help me...thanks
- Physics Need quick help please - Elena, Wednesday, May 8, 2013 at 5:19pm
Number of nuclei
N=nN(A) = (m/μ) N(A)=
=(3 g)(6.02210²³ nuclei/mol)/(63 g/mol)=2.8710²² nuclei
The energy required to break all the copper nuclei into their constituent protons and
(550 MeV ) (2.8710²² nuclei) =1.5610²⁵ MeV =
=1.5610³¹eV =2.510¹² J
- Physics Need quick help please - Leila, Wednesday, May 8, 2013 at 5:32pm
Thanks Elena :) I really appreciate your help!
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