If we wish to burn 3.5 moles of propane, how many moles of oxygen gas is needed?

17.5 moles of oxygen gas

Explanation:

Propane burns with the help of oxygen according to the following reaction

It can be seen that for 1 mole of propane 5 moles of oxygen is required.

The reaction will be

Therefore 17.5 moles of oxygen gas will be needed to burn 3.5 moles of propane.

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

: )