How much faster will neon effuse than krypton, given that the molar mass of krypton is

1 answer:

8 0

Effusion is the escape of a gas through a small hole.

Graham Law states that the speed of effusion is inversely related to the square root of its molar mass:

effusion speed = K * 1 / √ molar mass)

=> effusion speed of gas A √(molar mass of gas B)
   --------------------------------- = ----------------------------------
   effusion speed of gas B   √(molar mass of gas A)

=> efussion speed of Ne √(83.8)
   ----------------------------- = ---------- = 2.04
   effusion speed of Kr √(20.18

=> effusion speed of Ne = 2.04 * effusion speed of Kr.

Answer: approximated twice.

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<u>Explanation:</u>

One kilo pascal (1 kPa) corresponds to 1000 pascal. Another common unit used for pressure is atmosphere (symbolised as ‘atm’). 1 atm refers the standard atmospheric pressures and corresponds to 760 mm Hg and 101.3 kPa. Atmospheric pressures are commonly referred as square inches (psi)/ pounds.

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The air pressure for a certain tire = 109 kPa

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1.08 atm is the pressure for a certain tire in atmosphere.

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