- #1
Ryo124
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Homework Statement
a - How many fission reactions would occur in 1 year of running of a nuclear reactor if the average power of the reactor is 778 MW?
b - How many kilograms of U-235 would be needed to run the reactor for 1 year?
c - What is the total change in mass for 1 year of running?
I've found that 183.9 MeV are released from one fission reaction.
Homework Equations
1 megawatt = 10^6 J/s (1,000,000 J/s)
1 eV = 1.602 ×10^−19 J
1 year = 31,556,926 sec
I don't know any others.
The Attempt at a Solution
I know that 778 MW = 778,000,000 J/s. I do not know where to go from there.
I'm not even sure if 183.9 MeV will be used in the answer to a, but I know the answer to a is required for b and b for c.
I've tried multiplying 778,000,000 J/s by 31,556,926 sec to get just Joules.
I've also tried dividing 778,000,000 J/s by 31,556,962 (don't know why - probably just out of desperation).
From here I've done a multitude of things (such as dividing this answer by 1.602E-13 J) but nothing I've done is working. Someone please help, I've been at this one since 12:30 (now 4:30) and it's really getting me frustrated.
- edit: 6:30pm - still working on this one, tried tons of Google searches to no avail, also posted on some other forums (although I don't know why -this one is the best )
Still can't get answer, someone please explain/help/respond!
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