What is the Velocity of Thermal Neutrons at 25 Degrees Celcius?

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Homework Statement


Estimate the velocity of thermal neutrons at 25 degrees celcius

Homework Equations

The Attempt at a Solution


I attempted to use KE=0.5mv^2 but I realized that I didn't know the Kinetic energy
 
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Hint: Thermal neutrons behave as an ideal gas.
 
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