A closed vessel contains 8,g of oxygen and 7, | vedclass

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

Question

(D) The number of moles of oxygen $(n_{O_2})$ is $n_{O_2} = \frac{8\,g}{32\,g/mol} = 0.25\,mol$.The number of moles of nitrogen $(n_{N_2})$ is $n_{N_2

Vedclass · Accepted Answer

$5$

Vedclass · Answer

(D) The number of moles of oxygen $(n_{O_2})$ is $n_{O_2} = \frac{8\,g}{32\,g/mol} = 0.25\,mol$.The number of moles of nitrogen $(n_{N_2})$ is $n_{N_2} = \frac{7\,g}{28\,g/mol} = 0.25\,mol$.According to Dalton's law of partial pressures,the total pressure $P_{total}$ is proportional to the total number of moles $n_{total} = n_{O_2} + n_{N_2} = 0.25 + 0.25 = 0.50\,mol$.Given $P_{total} = 10\,atm$,the partial pressure of each gas is proportional to its mole fraction.Since $n_{O_2} = n_{N_2}$,the partial pressure of nitrogen is $P_{N_2} = \frac{n_{N_2}}{n_{O_2} + n_{N_2}} 	imes P_{total} = \frac{0.25}{0.50} 	imes 10\,atm = 5\,atm$.When oxygen is removed,only nitrogen remains in the vessel. Therefore,the pressure of the remaining gas is $5\,atm$.

$A$ closed vessel contains $8\,g$ of oxygen and $7\,g$ of nitrogen. The total pressure is $10\,atm$ at a given temperature. If oxygen is now absorbed by introducing a suitable absorbent,the pressure of the remaining gas in $atm$ will be:

Similar Questions

On which does the value of $\alpha_V$ depend for an ideal gas?

An ideal gas at atmospheric pressure has a temperature of $300 \,K$ and a volume of $1 \,m^3$. If its temperature and volume are both doubled,its pressure will be ...........

When the temperature of a gas at constant volume is increased by $5^{\circ}C$,its pressure increases by $0.5\%$ of its initial value. The initial temperature of the gas is..... $K$.

When a gas in a closed vessel was heated so as to increase its temperature by $5^{\circ}C$,there occurred an increase of $1\%$ in its pressure. The original temperature of the gas was ...... $^{\circ}C$

Which quantity is constant for two gases of equal volume at the same pressure and temperature?

Vedclass Test Series

Exam Paper Generator

Online Exam Module