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//Variable declaration:
n = 1200.0 //Flow rate of air in a molar flow rate (lbmol/min)
Cp = 0.26 //Average heat capacity (Btu/lbmol.°F)
T1 = 200.0 //Initial temperature (°F)
T2 = 1200.0 //Final temperature (°F)
//Calculation:
DT = T2 - T1 //Change in temperature (°F)
Q = n*Cp*DT //Required heat rate (Btu/min)
//Result:
printf("The required heat rate is : %.2f x 10^5 Btu/min.",Q/10**5)
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