States of Matter

States of Matter

Question

As the temperature is raised from 20°C to 40°C, the average kinetic energy of neon atoms changes by a factor of which of the following?

  • 1/2

  • 2

  • 313/293

  • square root of 313 over 293 end root

Answer

C.

313/293

Average space KE space equals space 3 over 2 space RT divided by straight N subscript 0
left parenthesis KE right parenthesis space proportional to space straight T
therefore space left parenthesis KE right parenthesis subscript 313 divided by left parenthesis KE right parenthesis subscript 293 space equals space 313 over 293

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