O At 15°C, SL and 3.0 grams of gaseous form phosphorous pentachloride and oxygen gas are respectively filled in the vessel. Continuous heating of vessel gives
POCL, at 200°C. What is the final pressure of the vessel, assuming that the reaction goes to completion?
A.
B.
C.
D.
1.19 atm
2.08 atm
1.43 atm
1.01 atm
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Answers
Answered by
0
Answer:
Option B
Explanation:
Let us use the general gas equation
P V = n RT
V = 5L = 0.005 m3
n = 3 / (40 +16+35.4)
n = 0.033
R = 8.314
T = 200C = 473K
Puttng the values in the above formula we have;
P x 0.005 = 0.033 x 8.314 x 473
P = 129 / 0.005
P = 2.08 atm
Hence option B is the correct one
Answered by
0
The final pressure of the vessel, assuming that the reaction goes to completion is 0.000256 atm.
Explanation:
The ideal gas equation is given as:
PV = nRT
Where,
P = Pressure = ?
V = Volume = 5 L = 5 m³
n = 3/(40 + 16 + 35.4) = 0.033
R = 8.314 J. mol⁻¹. K⁻¹
T = 200°C = 200 + 273 = 473 K
On substituting the values, we get,
(P × 5) = (0.033 × 8.314 × 473)
P × 5 = 129.8
P = 129.8/5
∴ P = 25.96 Pascal = 0.000256 atm
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