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//To Calculate the Internal Energy of 1 gram of oxygen at STP.
//Example 27.5
clc;
clear;
m=1;//Mass of Oxygen taken in grams
M=32;//Molecular Weight of Oxygen in g/mol
n=m/M;//Number of moles of Oxygen
R=8.31;//Universal Gas Constant in J/mol-K
T=273;//Temperature in Kelvin at STP
U=int(n*((5/2)*R*T));//Internal Energy of Oxygen
printf("Internal Energy of Oxygen=%d J",U);
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