Question

AS WE KNOW AIR IS A BAD CONDUCTER OF HEAT BUT WE NEED OXYGEN ( AIR) FOR FIRE.

ANY RELEVANT ANSWERS WILL BE REPORTED.....​

Answer 1

Answer:

air is a poor conductor of heat. ... Air molecules only tranfer energy upon collision, and that collision time is too small for any significant energy tranfer to occur. Heat transfer in air is mainly due to convection, which in general is less efficient than in conduction.

Answer 2

If you go deep in to the molecular level the heat is conducted through the Excitation or Lattice Vibration of the molecules less the space b/w the molecules the more the Vibration of the molecules results high conductivity for heat. This is observed in Solids where molecules are closely packed.

But when it comes to air or any other fluid the packing of molecules is random and the molecular vibrations are negligible so a fluid becomes the bad conductor of heat.

For fluids the Heat Transfer is explained in terms of Convection where it depends up on the speed of the fluid