Question

A welding torch produces a flame by burning acetylene fuel in the presence of oxygen. the energy released from the acetylene fuel is then used to melt a metal. which energy transformation happens during this process? chemical energy turns into thermal energy. kinetic energy turns into potential energy. thermal energy turns into electromagnetic energy. potential energy turns into chemical energy.

Answer 1

A welding torch produces a flame by burning of acetylene fuel then energy released from the acetylene fuel is then used to melt a metal, so transformation of chemical energy into thermal energy takes place.

What is transfer of energy?

Energy neither can be produced nor destroyed but it only transfers from one form to other form.

In the question it is given that, burning of acetylene produces energy and this produced energy is a type of chemical energy and then this is used as a thermal energy for the melting of metal.

So conversion of kinetic energy to potential energy, thermal energy to electromagnetic energy and potential energy to chemical is wrong.

Hence transformation of chemical energy into thermal energy takes place.

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