How much heat is needed to heat 1 kilo of air by 1 degree c.?

To calculate the heat required to raise the temperature of 1 kilogram of air by 1 degree Celsius, you can use the specific heat capacity of air, which is approximately 1,005 joules per kilogram per degree Celsius (J/kg·°C). Therefore, the heat needed is about 1,005 joules. This value can vary slightly based on factors like humidity and pressure, but 1,005 J is a good estimate for dry air at room temperature.