A mixture of N 2 and Ar gases in a cylinder contains 7   g of N 2 and 8   g of Ar . If the total pressure of the mixture of the gases in the cylinder is 27 bar, the partial pressure of N 2 is: [Use atomic masses (in g   mol &

Question

A mixture of N 2 and Ar gases in a cylinder contains 7 &#160; g of N 2 and 8 &#160; g of Ar . If the total pressure of the mixture of the gases in the cylinder is 27 bar, the partial pressure of N 2 is: [Use atomic masses (in g &#160; mol &#8211; 1 ): N = 14 , Ar = 40 ]

Quantrex Academy · Accepted Answer

Correct answer: B. 15 bar

Mass of N 2 = 7 &#160; g Moles of N 2 = 7 28 = 1 4 Mass of Ar = 8 &#160; g Moles of Ar = 8 40 = 1 5 Partial &#160; pressure N 2 = P T &#215; mole &#160; fraction N 2 = 27 &#215; 1 / 4 1 / 4 + 1 / 5 = 27 &#215; 1 / 4 9 / 20 = 27 &#215; 20 4 &#215; 9 = 3 &#215; 5 = 15 &#160;bar

A mixture of N 2 and Ar gases in a cylinder contains 7   g of N 2 and 8   g of Ar . If the total pressure of the mixture of the gases in the cylinder is 27 bar, the partial pressure of N 2 is: [Use atomic masses (in g   mol – 1 ): N = 14 , Ar = 40 ]

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More from States of Matter

A mixture of N 2 and Ar gases in a cylinder contains 7 &#160; g of N 2 and 8 &#160; g of Ar . If the total pressure of the mixture of the gases in the cylinder is 27 bar, the partial pressure of N 2 is: [Use atomic masses (in g &#160; mol &#8211; 1 ): N = 14 , Ar = 40 ]

Options

Correct answer

Step-by-step solution

More from States of Matter

A mixture of N 2 and Ar gases in a cylinder contains 7 g of N 2 and 8 g of Ar . If the total pressure of the mixture of the gases in the cylinder is 27 bar, the partial pressure of N 2 is: [Use atomic masses (in g mol – 1 ): N = 14 , Ar = 40 ]