Before a nuclear reaction, there is 0.0100 kg of uranium. After the nuclear reaction, there is 0.0090 kg of uranium. How much energy was released? (h = 6.63 × 10^-34 J • s)

jjennylove May 10, 2020

#1

#3**0 **

there was no formula but I actually ended up finding the answer and the guest below was as well correct.thank you for your help!

jjennylove
May 11, 2020

#2**+1 **

Isn't this just E = Mc^2

0.01 - 0.009 =0.001 kg - loss in Mass

E = 0.001 x 299,792,458^2 = 89,875,517,873,681.764 =8.99 x 10^13 Joules

Note: I don't think you need Planck's constant in this calculation. It is generally used to calculate the energy of a photon of radiation when its frequency is known.

Guest May 10, 2020