Krypton gas is four times denser than neon gas at the same temperature and pressure.
Which gas is predicted to effuse faster?
i got neon which is correct
but How much faster? how many times? i don't know how to get htis
lighter molecules effuse faster.
Graham's law: Rate of effusion is inverely proportional to the square root of molecular mass.
So neon effuses faster. Go to the head of your class.
how much faster: rateneon=rateKr*sqrt(83.7/20.1) or about twice as fast.
I answered this for you earlier.
thanks bobpursley. drbob222 you answered the first part but i also needed helpp on the second
To determine how much faster neon gas is predicted to effuse compared to krypton gas, we need to consider Graham's law of effusion. Graham's law states that the rate of effusion of a gas is inversely proportional to the square root of its molar mass.
In this case, we know that Krypton gas is four times denser or has four times the molar mass of Neon gas. Since the rate of effusion is inversely proportional to the square root of the molar mass, we can use the ratio of their molar masses to determine the ratio of their effusion rates.
Let's denote the rate of effusion of Neon as Rn and the rate of effusion of Krypton as Rk. According to Graham's law,
Rn/Rk = √(Mk/Mn)
Where Mk and Mn are the molar masses of Krypton and Neon, respectively.
Since Krypton gas is four times denser than Neon gas, the ratio of their molar masses would be 1:4.
So, plugging in the values:
Rn/Rk = √(1/4) = 1/2 = 0.5
This means that Neon gas is predicted to effuse at a rate that is twice as fast as Krypton gas. In other words, Neon gas is expected to effuse two times faster than Krypton gas at the same temperature and pressure.