7159Chemical EngineeringMedium
Heat capacity of air can be approximately expressed as, Cp = 26.693 + 7.365 x10-3 T, where, Cp is in J/mole.K and T is in K. The heat given off by 1 mole of air when cooled at atmospheric pressure from 500°C to – 100°C is ________?
A16.15 kJ
B18.11 kJ
C18.33 kJ
D10.73 kJ
Correct answer
B. 18.11 kJ
Explanation
The correct answer is 18.11 kJ.