Question

A mixture of CO(g) and H2(g) is pumped into a previously evacuated 2.0 L reaction vessel. The total pressure of the reaction system is 1.2 atm at equilibrium. What will be the total pressure of the system if the volume of the reaction vessel is reduced to 1.0 L at constant temperature? (A) Less than 1.2 atm b. Greater than 1.2 atm but less than 2.4 atm (C) 2.4 atm (D) Greater than 2.4 atm

Answer 1

Gas laws can be applied to ideal gases to obtain pressure, volume temperature and number of moles. Using Boyle's law, the pressure of tha gas is 2.4 atm.

Gas laws

The gas laws are used to obtain the relationship between pressure, volume temperature and number of moles. These gas laws only apply to ideal gases.

Boyle's law states that, the volume of a given mass of gas is inversely proportional to its pressure at constant temperature. Hence; P1V1= P2V2

Where;

P1 =  1.2 atm

V1 = 2.0 L

V2 = 1.0 L

P2 = ?

P2 = P1V1/V2

P2 = 1.2 atm * 2.0 L/ 1.0 L

P2 = 2.4 atm

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