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Answer : The final chamber pressure is 0.746 atm.
Explanation:
First we have to calculate the moles of .
Molar mass of = 122.5 g/mole
Now we have to calculate the moles of .
The balanced chemical reaction will be:
From the balanced reaction we conclude that,
As, 2 moles of react to give 3 moles of
So, 0.0163 moles of react to give
moles of
Now we have to calculate the pressure of gas.
Using ideal gas equation:
where,
P = pressure of gas = ?
V = volume of gas = 0.800 L
T = temperature of gas =
R = gas constant = 0.0821 L.atm/mole.K
n = number of moles of gas = 0.0244 mole
Now put all the given values in the ideal gas equation, we get:
Therefore, the final chamber pressure is 0.746 atm.