\textbf{213.} In a car tire, 13 g of sodium azide has been used. If after the explosion, the temperature inside the tire reaches $127^\circ\text{C}$, the volume of gas inside the tire increases to approximately how many liters? (Assume the gas pressure inside the tire is 1 atmosphere.)
$(N = 14,\ Na = 23:\ \text{g.mol}^{-1})$
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(1) $6/77$ \qquad (2) $8/75$ \qquad (3) $9/85$ \qquad (4) $11/50$
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