A mixture of hydrogen and oxygen contains 40 | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) Let the total mass of the mixture be $100 \, g$.Mass of $H_2 = 40 \, g$,so moles of $H_2$ $(n_{H_2})$ $= \frac{40}{2} = 20 \, mol$.Mass of $O_2 =

Vedclass · Accepted Answer

$2$

Vedclass · Answer

(B) Let the total mass of the mixture be $100 \, g$.Mass of $H_2 = 40 \, g$,so moles of $H_2$ $(n_{H_2})$ $= \frac{40}{2} = 20 \, mol$.Mass of $O_2 = 60 \, g$,so moles of $O_2$ $(n_{O_2})$ $= \frac{60}{32} = 1.875 \, mol$.Mole fraction of $H_2$ $(x_{H_2})$ $= \frac{n_{H_2}}{n_{H_2} + n_{O_2}} = \frac{20}{20 + 1.875} = \frac{20}{21.875} \approx 0.9143$.Partial pressure of $H_2$ $(P_{H_2})$ $= x_{H_2} 	imes P_{total} = 0.9143 	imes 2.2 \, bar = 2.01146 \, bar$.The nearest integer is $2 \, bar$.

$A$ mixture of hydrogen and oxygen contains $40 \%$ hydrogen by mass when the total pressure is $2.2 \, bar$. The partial pressure of hydrogen is $bar$. (Nearest Integer)

Similar Questions

$A$ pressure cooker reduces the cooking time because:

State Dalton's Law of partial pressure,provide its mathematical formula,and explain aqueous tension.

Isochores are drawn at

To which of the following gaseous mixtures is Dalton's law of partial pressures not applicable?

Which one of the following statements is not correct about the three states of matter,i.e.,solid,liquid,and gaseous?

Vedclass Test Series

Exam Paper Generator

Online Exam Module