. The average molecular speed is greatest in which of the following gas samples ?
(1) 1.0 mol of O2 at 560 K
(2) 0.50 mol of Ne at 500 K
(3) 0.20 mol of CO2 at 440 K
X4) 2.0 mol of He at 140 K
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The average molecular speed is greatest in 2.0 moles of He at 140K
- The average molecular speed is given by the formula
- The average speed of the molecules depends on the value of .The greater the value the higher is the speed.
- For O₂ at 560K
- For Ne at 500K
- For CO₂ a t440K
- For He at 140K
- As the value is greater for He the average molecular speed is greater for 2.0 moles of He at 140K.
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