The total volume of gas produced at 1092 K and 1 atm is 34136.61 L.
The balanced chemical reaction for the above reaction is given as,
NaNO₃ → NaNO₂ + O₂
By ideal gas equation,
PV = nRT
where,
P is pressure, V is volume, n is no. of moles, R is gas constant and T is the temperature in Kelvin.
n = given mass / molecular mass
n = 320 / 85 = 3.76
Substituting the values in the equation we get,
1 × V = 3.76 × 8.314 × 1092
⇒ V = 34136.61 L
Hence, the volume is 34136.61 L.
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