Chemistry Homework Help

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Root Mean Square Speed

#### Q. Arrange the following molecules in order of increasing average molecular speed. All are the same temperature. carbon dioxide, helium, krypton, nitrogen. Enter formulas in the boxes below: 1 = slowest, 4 = fastest

Solved • Jan 23, 2020

Root Mean Square Speed

#### Q. Arrange the following molecules in order of increasing average molecular speed. O3 at 305K, He at 421K, He at 379K, Ne at 379K Enter formulas and temperatures in the boxes below: 1 = slowest, 4 = fastest

Solved • Jan 23, 2020

Root Mean Square Speed

#### Q. Match the gas sample on the left with a description on the right. You may use the same answer more than once.

Solved • Jan 23, 2020

Root Mean Square Speed

#### Q. The average molecular speed in a sample of CH4 gas at a certain temperature is 655 m/s. The average molecular speed in a sample of Kr gas is _____ m/s at the same temperature.

Solved • Jan 23, 2020

Root Mean Square Speed

#### Q. The following gases are at 25 degree Celsius: N2,Ne,Ar,O2,Cl2

Solved • Nov 23, 2019

Root Mean Square Speed

#### Q. Calculate the rms speed, u, of an N2 molecule at 25 degree Celsius. Given T= 25 degree Celsius, MM N2= 28.0 g/ mole,(hint: convert to kg/mole), R= 8.314 J/mol-K= 8.314 kg.m^2/s^2.mol.K

Solved • Nov 19, 2019

Root Mean Square Speed

#### Q. At a certain temperature, the average speed of O2 molecules is 480 m/s. If the Kelvin temperature is doubled, what is the average speed of O2 molecules?

Solved • Nov 19, 2019