(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Suppose you want to observe neutron diffraction in a crystal with 0.27nm spacing between lattice planes.

Part A asks for the momentum of neutrons with a wavelength equal to the spacing. I used p = h/lambda to get the correct answer 2.5×10−24kgms^{-1}

Question1:

Find the kinetic energy of neutrons having wavelength equal to this spacing.

Question2:

If these neutrons constituted an ideal gas, what would be the gas temperature?

2. Relevant equations

Q1. k=0.5mv^{2}

Q2. PV=nRT

3. The attempt at a solution

Q1: I've tried a couple of different methods, dunno if i'm going the right way with this.

k=0.5mv^{2}

0.5(1.67*10^-27)(1.47*10^3)^2 = 1.80*10^-21J

is this correct?

Q2: I have no idea.

Thanks in advance.

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# Homework Help: Kinetic energy of neutron

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