4. A certain fan delivers 6 m^3/sec of air at 25°C and 101.3 kPa. It is operating at 500 rpm and requires 3 kW of power. If the air temperature increases to 94°C and the speed of the fan remains the same, calculate the new power in kW.
A. 2.63 B. 3.00 C. 2.44 D. 3.7