How many watts are needed to heat up 1 cubic meter of air 1 degree centigrade in 1 secondd?

To heat 1 cubic meter of air by 1 degree Celsius in 1 second, you need approximately 1,200 watts. This is based on the specific heat capacity of air, which is about 1,006 joules per kilogram per degree Celsius, and the density of air, which is roughly 1.225 kg per cubic meter. Therefore, the energy required (in joules) is the product of these values (1,225 kg/m³ * 1,006 J/kg°C * 1°C), resulting in about 1,200 watts when considering the time factor (1 second).