Hey There!:
227ºC in kelvin :
227 + 273.15 => 500.15 K
We use the Clapeyron equation :
p * V = n * R * T
5.3 * V = 0.8 * 0.08205 * 500.15
5.3 V = 32.829846
V = 32.829846 / 5.3
V = 6.194 L
hope this helps!
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