Question

The correct expression of partial pressure in terms of mole fraction is :

• A. $p_1=x_1{P}_{total},p_2=x_2{P}_{total}$
• B. $p=x_1{x}_2{P}_{total}$
• C. $P_{total}=p_1{x}_1,P_{total}=p_2{x}_2$
• D. $p_1+p_2=x_1+x_2$

Answer 1

Answer: (A)

$p_1=x_1{P}_{total},p_2=x_2{P}_{total}$

If $x_1$ and $x_2$ are mole fractions of two gases.
Their partial pressures are $p_1=x_1{P}_{total},p_2=x_2{P}_{total}$.