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 ____________________?
Correct answer: C
Explanation
The heat released is calculated by integrating Cp dT from 500°C to -100°C. Using the given formula and temperature conversion (K), the result matches option C.