Suppose that 0.25 mole of gas c was added to the mixture without changing the total pressure of the mixture. how does the addition of c to the mixture change the mole fraction of gas a?

Here we have to get the effect of addition of 0.25 moles of gas C on the mole fraction of gas A in a mixture of gas having constant pressure.

On addition of 0.25 moles of C gas, the mole fraction of gas A will be  .

The partial pressure of gas A can be written as = ×P (where is the mole fraction of gas A present in the mixture and P is the total pressure of the mixture.

The mole fraction of gas A in a mixture of gas A and C is = and respectively.

Thus on addition of 0.25 moles of C gas, the mole fraction of gas A will be  .

Which is different from the initial state.

12 is it do you think so