A sealed flask with a capacity of 2 dm^3 contains 11 g of propane gas. The flask is so weak that it will burst if the pressure becomes 2 MPa. The…

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