Question

define endothermic reaction?

Answer 1

informally, an endothermic reaction is one that takes in energy from the environment

formally, an endothermic reaction is a reaction wherein the enthalpy of the products is greater than the enthalpy of the reactants and thereby requires energy to be absorbed from the surroundings.

Answer 2

in general its the reaction in which HEAT is ABSORBED

Answer 3

In thermodynamics, the term endothermic process describes a process or reaction in which the system absorbs energy from its surroundings in the form of (usually, but not always) heat.

Answer 4

n general its the reaction in which heat is absorbed