Hess Law Definitions 0.0 / 5 ? ChemistryEnthalpyASOCR Created by: mattnotleyCreated on: 02-04-14 17:14 It is not always possible to measure the enthalpy due to high _________ energy activation 1 of 17 It is not always possible to measure the enthalpy due a ________ rate of reaction slow 2 of 17 It is not always possible to measure the enthalpy due to multiple _________ taking place Multiple 3 of 17 Hess' law provides a way for finding the enthalpy change _______ indirectly 4 of 17 Hess' law is based on the law of ________ of energy conservation 5 of 17 reactants -------> ________----------> products intermediate 6 of 17 For hess' law to work the ________ at the start and end must be the same conditions 7 of 17 A diagram showing alternate routes between reactants and products id called a enthalpy _______ cycle 8 of 17 what temperature is meant by standard contains (C)? twenty-five 9 of 17 What pressure is meant by standard conditions (kPa)? one hundred 10 of 17 Enthalpy change of combustion: When one _____ mole 11 of 17 Enthalpy change of combustion: reacts ________ in oxygen Completely 12 of 17 Enthalpy change of combustion: under standard ________ conditions 13 of 17 Enthalpy change of formation: When one mole of a compound in its standard ______ is formed state 14 of 17 Enthalpy change of formation: The compound is formed from its _________ elements constituent 15 of 17 Enthalpy change of reaction: The enthalpy change that accompanies a reaction in the molar _______ expressed quantities 16 of 17 Enthalpy change of reaction: with all products being in there _________ state standard 17 of 17
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