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College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

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BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

Calculate the root-mean-square (rms) speed of methane (CH4) gas molecules at a temperature of 325 K.

To determine
The root mean square speed.

Explanation

Given Info: The temperature is 325 K. Molecular mass of methane is 16 g/mol.

Formula to calculate the root mean square speed is,

vrms=3RTM

  • R is the gas constant.
  • T is the temperature
  • M is the molecular mass

Substitute 325 K for T, 16 g/mol for M and 8.31Jmol1K1 for R in the above equation to get vrms

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