exo thermic and endothermic
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exothermic reaction
gives out energy to its surroundings
bond energies are the amount
of energy required to break one mole of a particular covalent bond
endothermic needs,
energy from the surroundings
how do exothermic reaction usually release energy and how is it shown
in form of thermal energy, shown by the rise in temperature of the surroundings
are combustion reactions exothermic or endothermic
exothermic
how are endothermic reactions usually in the form of (energy) and how are they shown
usually in form of thermal energy and shown by fall of temperature of surroundings
enthalpy change is
the overall amount of energy given out or taken in in a reaction is called the enthalpy change
in exothermic reactions, the enthalpy change is ( positive / negative)
negative because energy is being released
in endothermic reactions the enthalpy change is
positive because energy is being taken in