Endothermic and Exothermic Reactions Try answering the following questions: Why is heat produced when a pile of sticks is burnt at a campfire? Why does a glass of lemonade become colder when the ice cubes in it begin to melt? Why is it necessary to keep the gas burner turned on for ...
We know from the law of conservation of energy that energy can neither be created nor destroyed. Any energy gained or lost by a reaction must go somewhere. When a chemical reaction combines two or more things and makes a chemical bond, energy is released, so it is an exothermic reaction....
Fully explain the difference between exothermic and endothermic reactions, in terms of the system and the surroundings. What do you understand by the term 'endothermic reaction'? Predict whether each of the following reactions would be exothermic...
When chemical bonds form and break in decomposition reactions, heat energy is either released or absorbed. We categorize such reactions as eitherexothermic(releasing heat energy) orendothermic(absorbing heat energy). Here are some examples of exothermic and endothermic reactions. ...