1.What is partial pressure? d. Partial pressure is the pressure of a single gas

Question

1.What is partial pressure?

d. Partial pressure is the pressure of a single gas in a mixture of two or more gases.

2. Which of the following gases account for 78% of the pressure exerted by dry air?

a. Partial pressure is the pressure of a gas in thermodynamic equilibrium with its condensed phases. b. Partial pressure is the pressure of all gases in a mixture. c. Partial pressure is the pressure of a liquid in thermodynamic equilibrium with a gas.

d. Partial pressure is the pressure of a single gas in a mixture of two or more gases.

2. Which of the following gases account for 78% of the pressure exerted by dry air?

oxygen carbon dioxide nitrogen argon

Explanation / Answer

1 (b)

According to Dalton's law of partial pressure, The pressure exerted by an individual gas in a mixture is known as its partial pressure.

2 --------Nitrogen

Since we know air is a mixture of gases , 78% Nitrogen and 21% oxygen.

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