   Chapter 10, Problem 54P ### University Physics Volume 3

17th Edition
William Moebs + 1 other
ISBN: 9781938168185

#### Solutions ### University Physics Volume 3

17th Edition
William Moebs + 1 other
ISBN: 9781938168185
Textbook Problem

# A large power reactor that has been in operation for some months is tinned off, but residual activity in the core still produces 150 MW of power. If the average energy per decay of the fission products is 1.00 MeV, what is the core activity?

To determine

The core activity of the large power reactor,

Explanation

GivenInfo:

Power of reactor= 150×106W,Average energy per decay of fission products= 1.00 MeV

Formula used:

Coreactivity=PowerofreactorAverageenergyperdecay ........ (1)

Calculations:

Convert average energy decay from MeV to J.

E=1MeV(1.60×10-13J1MeV)

E=1.6010-13J..

Substitute the given value of power= 150×106W and average energy per decay in terms of joule=1.60×10-13J

in equation (1)

Coreactivity=(150×106W)(1

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