From a container when 4.0 g of gas is removed the pressuredrops to 90% of what i

Question

From a container when 4.0 g of gas is removed the pressuredrops to 90% of what is was: P(New)= .90 x P(original). For which of the following gas samples isthis possible Ar in 11.2 L container at 0 deg C and 1.0 atm Ar in 22.4 L container at 0 deg C and 2.0 atm Ar in 22,4 L container at 0 deg C and .50 atm Ar in 11.3 L container at 0 deg C and 2.0 atm From a container when 4.0 g of gas is removed the pressuredrops to 90% of what is was: P(New)= .90 x P(original). For which of the following gas samples isthis possible Ar in 11.2 L container at 0 deg C and 1.0 atm Ar in 22.4 L container at 0 deg C and 2.0 atm Ar in 22,4 L container at 0 deg C and .50 atm Ar in 11.3 L container at 0 deg C and 2.0 atm

Explanation / Answer

For the given Condition option d is found to besuitable :      PV = n RT      2.0 atm x 11.3 L = nx 0.0821 atm - L / mol - K x 273 K         number ofmoles = 1.008 mol         weight of the Argas is  40.333 g         After 4 g of Ar is removed the change in weight is  36.333 g        The Pressureexerted is :           P = 0.90 mol x 0.0821 atm - L / mol -K x 273K /  11.3 L                = 1.80 atm       The change inPressure is Pintial x 0.90                                                  = 2.0 atm x 0.90                                                   = 1.80 atm    option d is correct.

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