chemistry
posted by Anonymous on .
A plastic cylinder full of acetylene (C2H2) has a rigid volume of 2.92 L and a pressure of 1.80 atm at 20 °C. The cylinder can only withstand a pressure of 5 atm. Left inside a hot car where the temperature can reach 50 °C, is there danger of the cylinder rupturing? If so, at what temperature will the rupture take place?

There is just one problem here although can make two out of it. I would calculate the T necessary to achieve a pressure of 5 atm. Compare with T = 50 C.
Remember T must be in kelvin. 
would i be using the ideal gas equation in order to calculate the T necessary?