The total pressure in a mixture of 8 g of dioxygen and 4 g of dihydrogen confined in a vessel of 1 ${d m}^{3}$ at $27^{o} C$ is :

(R = 0.083 bar dm $^{3}$ K $^{- 1}$ mol $^{- 1}$ )

44.02 b a r

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35.35 b a r

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56.025 b a r

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42.39 b a r

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Solution

The correct option is C $56.025 b a r$
Explanation :

Weight of $O_{2} = 8 g$

$n_{O_{2}} = \frac{8}{32} = 0.25 m o l$

Weight of $H_{2} = 4 g$

$n_{H_{2}} = \frac{4}{2} = 2 m o l$

Total number of moles $= 2 + 0.25 = 2.25 m o l e s$

$V = 1 d m^{3} = 1 L$

$T = 27^{0} C = 300 K$

Now,

$P V = n R T$

$P \times 1 = 2.25 \times 0.083 \times 300$

$P = 56.025$ bar

The correct option is C.

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Similar questions

Q. Calculate the total pressure in a mixture of 8 g of dioxygen and 4 g of dihydrogen confined in a vessel of 1 dm

^{3}

at 27

^{\circ} C

. (R = 0.083 bar dm

^{3}

^{- 1}

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^{- 1}

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Calculate the total pressure in a mixture of 8 g of dioxygen and 4 g of dihydrogen confined in a vessel of 1 dm³ at 27°C. R = 0.083 bar dm³ K^–¹ mol^–^1.

Q. Calculate the total pressure in mixture of

8 g

of dioxygen and

8 g

of dihydrogen confined in a vessel of

1 {dm}^{3}

27^{o} C

.
[Take

R = 0.083 {bar dm}^{3} K^{- 1} {mol}^{- 1}

]

Calculate the total pressure of a mixture of 8 g of oxygen and 4g of hydrogen confined in vessel of

1 d m^{3}

27^{0} C

(R = 0.083 b a r d m^{3} k^{- 1} {m o l}^{- 1})

Q. calculate the total pressure of a mixture of 8grams of O2 and 4grams of H2 and enclosed in a vessel of 1 dm^3 at 27°C ?
Given that R = 0.083 bar dm^3 K^-1 mol^-1

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The total pressure in a mixture of 8 g of dioxygen and 4 g of dihydrogen confined in a vessel of 1dm3 at 27oC is : (R = 0.083 bar dm 3 K−1 mol−1)

The correct option is C 56.025 barExplanation :Weight of O2=8 g nO2=832=0.25 molWeight of H2=4 g nH2=42=2 molTotal number of moles =2+0.25=2.25 moles V=1dm3=1LT=270C=300KNow,PV=nRTP×1=2.25×0.083×300P=56.025 barThe correct option is C.

The total pressure in a mixture of 8 g of dioxygen and 4 g of dihydrogen confined in a vessel of 1 ${d m}^{3}$ at $27^{o} C$ is :

(R = 0.083 bar dm $^{3}$ K $^{- 1}$ mol $^{- 1}$ )