I think this is a ideal gas/ thermal expansion problem. A cylinder is closed by a piston connected to a spring of constant 2*10^3 N/m. With the spring relaxed, the cylinder is filled with 5 L of gas at a pressure of 1 atm and a temperature of 20 degrees Celsius. a) If the piston has a cross-sectional area of 0.010 m^2 and negligible mass, how high will it rise when the temperature is raised to 250 degrees Celsius? b) What is the pressure of the gas at 250 degrees Celsius? Use this figure to solve the problem: Code (Text): [PLAIN]http://east.ilrn.com/graphing/bca/user/appletImage?dbid=2121095896 [/PLAIN] [Broken] I'm not sure where to start with this problem. Any help will be great. Thanks!