- #1
MrsChaos
- 4
- 0
hi
i'm new so i hope i am writing this in the correct part of the forums
this is the question i have been given:
---
What is the energy Q released when ^{131}_{\ 53}{\rm I}decays and ^{131}_{\ 54}{\rm Xe} is formed? The atomic mass of ^{131}_{\ 53}{\rm I} is 130.906118 \rm u and the atomic mass of ^{131}_{\ 54}{\rm Xe} is 130.90508 \rm u.
Express your answer in megaelectron volts to three significant figures.
Q =
---
i have worked out that Delta m = 0.001038u
so assumed i could use E= {\Delta m} c^2
i am using 3.00*10^8 as c (if this is wrong please tell me)
and received the answer 9.342*10^13
could you please help me to convert this to MeV and let me know why i keep on getting this
question wrong :(
i'm new so i hope i am writing this in the correct part of the forums
this is the question i have been given:
---
What is the energy Q released when ^{131}_{\ 53}{\rm I}decays and ^{131}_{\ 54}{\rm Xe} is formed? The atomic mass of ^{131}_{\ 53}{\rm I} is 130.906118 \rm u and the atomic mass of ^{131}_{\ 54}{\rm Xe} is 130.90508 \rm u.
Express your answer in megaelectron volts to three significant figures.
Q =
---
i have worked out that Delta m = 0.001038u
so assumed i could use E= {\Delta m} c^2
i am using 3.00*10^8 as c (if this is wrong please tell me)
and received the answer 9.342*10^13
could you please help me to convert this to MeV and let me know why i keep on getting this
question wrong :(