using System; using L=Science.Physics.GeneralPhysics; namespace Serway.Chapter19 { /// /// Example07: Heating a Spray Can /// A spray can containing a propellant gas at twice /// atmospheric pressure (202 kPa) and having a volume /// of 125.00 cm^3 is at 22 C. It is then tossed into an /// open fire. When the temperature of the gas is the can /// reaches 195 C, what is the pressure inside the can? /// Assume any change in the volume of the can is negligible. /// P_f = 320 kPa. /// public class Example07 { public Example07() { } private string result; public string Result { get{return result;} } public void Compute() { L.Temperature t1 = new L.Temperature(); t1.C = 22.0; t1.FindAbsoluteFromCelsius(); L.Volume v1 = new L.Volume(); v1.mCUBE = 125.0*1.0E-6; L.Pressure p1 = new L.Pressure(); p1.Pa = 202.0E3; L.Temperature t2 = new L.Temperature(); t2.C = 195.0; t2.FindAbsoluteFromCelsius(); L.Volume v2 = new L.Volume(); v2.mCUBE = 125.0*1.0E-6; L.Pressure p2 = new L.Pressure(); p2.Pa = p1.Pa*v1.mCUBE/t1.K*t2.K/v2.mCUBE; result+=p2.ToString(); } } } //320400.813145858 +/- 0 (Pa)