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.

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.

princess_sol · Answer

Chemical energy turns into thermal energy.
Chemical energy is when a substance transforms into a chemical reaction and is able to transform other chemical substances, in this case the fire igniting which can change other substances (the metal). Thermal energy is energy that comes from heat, which is used in the process of melting the metal  .