Difference Between Endothermic And Exothermic Reactions

The main difference between endothermic and exothermic reactions is the direction of energy transfer, which is opposite.

Endothermic vs Exothermic Reactions

Here are the main Difference Between Endothermic And Exothermic Reactions:

Characteristic	Endothermic reaction	Exothermic reaction
Energy transfer	Absorbs energy from surroundings	Releases energy to surroundings
ΔH	Positive	Negative
Temperature	Decreases	Increases
Enthalpy of products	Higher than enthalpy of reactants	Lower than enthalpy of reactants
Entropy change	Increases or decreases	Increases
Spontaneity	Spontaneous at high temperatures	Spontaneous at all temperatures
Examples	Melting ice, photosynthesis	Burning wood, respiration
Applications	Refrigeration, air conditioning, food processing	Power generation, heating, transportation
Effect on surroundings	Cools surroundings	Heats surroundings
Safety	Generally safe	Can be dangerous if not handled properly
Reversibility	Usually reversible	Usually reversible
Environmental impact	Can be beneficial or harmful depending on the reaction	Can be beneficial or harmful depending on the reaction

Also Read;

What is Thermochemistry?	Spontenous Reactions
Non-Spontenous Reactions	Difference between Spontaneous and Non-Spontaneous Reactions