   Chapter 31, Problem 76PE

Chapter
Section
Textbook Problem

Unreasonable ResultsA particle physicist discovers a neutral particle with a mass at 2.02733 u that he assumes is two neutrons bound together.(a) Find the binding energy. (b) What is unreasonable about this result? (c) What assumptions are unreasonable or inconsistent?

To determine

(a)

The binding energy.

Explanation

Given info:

From periodic table,

The atomic mass A of neutral particle is 2.02733u .

• The 2 neutrons are bound together to make a neutral particle.

Formula used:

Formula to find the B.E. per nucleon is,

B.E.=Nmnmtotalc2

Equation-1

Here, mn is the mass of neutron, mtotal is the total mass and c is the speed of light.

Calculation:

To find the Binding energy per nucleon of C12substitute all the known values in equation-1

B.E

To determine

(b)

What is undesirable about the result.

To determine

(c)

What is undesirable about the calculate value of binding energy of neutral particle.

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