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+clear;

+clc;

+printf("\t\t\tProblem Number 6.12\n\n\n");

+// Chapter 6: The Ideal Gas

+// Problem 6.12 (page no. 255) 

+// Solution

+

+//The molecular weight of oxygen is 32.Therefore,

+R=1545/32; //Unit:ft*lbf/lbm*R //constant of proportionality

+J=778; //conversion factor

+cp=0.24; //Unit:Btu/lbm*R //specific heat at constant pressure

+//cp-cv=R/J

+cv=cp-(R/J); //specific heat at constant volume //unit:Btu/lbm*R

+printf("Specific heat at constant volume is %f Btu/lbm*R\n",cv);