Determine the kinetic energy of an atom of argon gas as absolute zero: OB. KEc0

Question

Determine the kinetic energy of an atom of argon gas as absolute zero: OB. KEc0 QUESTION 5 Use the CDF interface, and keeping the volume fixed increase the number of blue atoms from 10 to 20. What is the relationship between Pressure and moles (n) based on the two-fold increase in blue atoms OA There is no change in Pressure when the blue atoms (moles) are doubled. B. The Prossure doubles. C.The Pressure is halved. QUESTION 6 Using the CDF interface, set the number of blue atoms to 10 and the number of red atoms to 10 and allow the pressure history to equilibrate. Which of the following answers best describes how we could calculate the total pressure of the mixed gas system? OA Total Pressure Pressure of blue gas OB. Total Pressure Pressure of red gas C. Total Pressure-Pressure of blue gas + Pressure of red gas OD. Total Pressure Pressure of blue gas x Pressure of red gas

Explanation / Answer

4) At absolute zero the velocity of the gas molecules is zeroso thekinetic energy of the gas molecules is KE = 0

5)

We know that ideal gas equation is PV = nRT

Where

T = Temperature ;P = pressure ;n = No . of moles ; R = gas constant = 0.0821 L atm / mol - K

V= Volume of the gas

As V & T are kept constant P is proportional to n

So P / P' = n / n'

Where P = initial pressure ; P'= final pressure = ?

n = initial moles = 10 ; n' = final moles = 20

Plug the values we get , P' = 2P

So pressure doubles

6) According to Raoults law , Total pressure = sum of the partial pressures of the individual gases.

So total pressure = pressure of blue gas + pressure of red gas

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