A gas phase decomposition reaction AB+2C is to be carried out in a 1-liter constant volume reactor equipped with a pressure gauge for monitoring the total pressure as the reaction proceeds. The reactor is initially filled with a mixture of 50%A and 50% inerts at a temperature of 25C and atmospheric pressure. To initiate the reaction, the reactor is quickly immersed in a sand bath of 500C, and thereafter, the total pressure is monitored with time. The following data are obtained: Find a first order irreversible rate expression for the data. Show your data, the required calculations and the plot to help find the rate expression in an Excel file