A sealed flask with a capacity of \( 2 \mathrm{dm}^{3} \) contains \( 11 \mathrm{~g} \) of propa...

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A sealed flask with a capacity of \( 2 \mathrm{dm}^{3} \) contains \( 11 \mathrm{~g} \) of propane gas. The flask is so weak that it will burst if the pressure becomes \( 2 \mathrm{MPa} \). The minimum temperature at which the flask will burst is \( { }^{\circ} \) C. [Nearest integer] (Given: \( \mathrm{R}=8.3 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1} \). Atomic masses of \( \mathrm{C} \) and \( \mathrm{H} \) are - \( 12 \mathrm{u} \) and lu respectively.) (Assume that propane behaves as an ideal gas.)
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