i5. List the 3 things that energy (heat) required to change the temperature of a substance is dependent uponbollno atnroma olooibSlo mumixams blord no letidio oimo s todtin hoo ol taum oidw anoualo0dw elovoldue6. What amount of energy in kilojoules is needed to heat a 2.5 g piece of iron from 30°C to 42°C?wond sln istoo orlf ol eno os o OM bas OM (ai digeolavew tesoholeotoalo ad to noigar orT (di Iniog gnitlam dgid A (i

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5. List the 3 things that energy (heat) required to change the temperature of a substance is dependent upon bollno atnuoma olooib

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter6: Thermochemistry

Section: Chapter Questions

Problem 49E: The overall reaction in a commercial heat pack can be represented as 4Fe(s)+3O2(g)2Fe2O3(s)H=1652KJ...

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Concept explainers

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.

Question

i5. List the 3 things that energy (heat) required to change the temperature of a substance is dependent upon
bollno atnroma olooib
Slo mumixams blord no letidio oimo s todt
in hoo ol taum oidw anoualo
0dw elovoldue
6. What amount of energy in kilojoules is needed to heat a 2.5 g piece of iron from 30°C to 42°C?
wond sln istoo orlf ol eno os o OM bas OM (
ai digeolavew tesohole
otoalo ad to noigar orT (d
i Iniog gnitlam dgid A (i

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