Question

In which reaction would the activation energy result in an endothermic reaction?

Water freezing

An egg cooking

A candle burning

Iron rusting

Answer 1

Just did the test.

Answer is "An egg cooking".

I thought it was a candle burning because it keeps going until the light goes out but was wrong :( lol.

Hope this helps!

Answer 2

Answer : The correct option is, An egg cooking

Explanation :

• Endothermic reaction : It is a type of chemical reaction in which the energy is absorbed from the surrounding.
• Exothermic reaction : It is a type of chemical reaction in which the energy is released into the surrounding.

Water freezing  : It is an exothermic process. In this process, the heat is released when the phase changes from the liquid state to solid state.

An egg cooking  : It is an endothermic process. In this process, the heat is absorbed when the phase changes from the solid state to liquid state.

A candle burning : It is an exothermic process because the more amount of  heat is released when candle burns.

Iron rusting : It is an exothermic process because heat is released during the iron rusting process.

Hence, an egg cooking  is an endothermic reaction.