Question

The total pressure of two unknown gases is 5 kPa. The partial pressure of one of the gases is 2.345 kPa, what is the partial pressure of the other gas?

Answer 1

`p_2=2.655kPa`

Step-by-step explanation:

Hello there!

In this case, according to the Dalton's law, which states that the total pressure is equal the sum of the pressures of the gases in the mixture, we write the following for this system:

`P_T=p_1+p_2`

Thus, we solve for the partial pressure of the gas #2 as shown below:

`p_2=P_T-p_1\\\\p_2=5kPa-2.345kPa\\\\p_2=2.655kPa`

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