Exothermic Flashcards

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1
Q

Meaning of enthalpy change?

A

Heat energy measured at constant pressure

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2
Q

How are exothermic reactions identified

A

exothermic reactions are identified by determing a temp increase

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3
Q

what reaction is bond forming

A

Forming bonds is exothermic

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4
Q

when does an exothermic reaction occur

A

when more energy is released from bond making than absorbed during bond breaking. heat

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5
Q

what happens during bond formation

A

forming bonds releases energy

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6
Q

what is the enthalpy change in an exothermic reaction

A

negative

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7
Q

energy profile of exothermic reaction?

A

Enthalpy change of product is lower than enthalpy of reactant

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8
Q

eg of exothermic reactions

A

Combustion Oxidation Respiration Acids reacting with metal

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