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How many kilojoules are associated with the formation of 2 moles of HBr(g)?
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Asked 3/24/2013 3:15:31 PM
Updated 122 days ago|11/1/2023 12:37:23 AM
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User: How many kilojoules are associated with the formation of 2 moles of HBr(g)?

Weegy: a. -73
scijoe21|Points 2275|

User: enthalpy

Weegy: Enthalpy of a reaction or energy change of a reaction DH, is the amount of energy or heat absorbed in a reaction. If the energy is required, DH is positive, and if energy is released, the DH, is negative. [ ]
bonaxle|Points 789|

User: endothermy

Weegy: Endothermy is a process where energy in the form of heat is absorbed from the surrounding. Opposite of this is exothermy. [ This is studied with reference to chemistry and thermodynamics. ]
Expert answered|Sting|Points 2886|

Question
Asked 3/24/2013 3:15:31 PM
Updated 122 days ago|11/1/2023 12:37:23 AM
3 Answers/Comments
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The standard enthalpy of formation of HBr(g) is approximately -36.3 kJ/mol. To find the total energy associated with the formation of 2 moles of HBr(g), you would multiply the enthalpy change by the number of moles, so it would be -72.6 kJ.
Added 122 days ago|11/1/2023 12:34:52 AM
This answer has been confirmed as correct and helpful.
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Enthalpy of a reaction or energy change of a reaction DH, is the amount of energy or heat absorbed in a reaction. If the energy is required, DH is positive, and if energy is released, the DH, is negative. TRUE.
Added 122 days ago|11/1/2023 12:36:05 AM
This answer has been confirmed as correct and helpful.
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Endothermy can be defined as any mechanism of heat generation without shivering that increases body temperature and resting metabolic rate.
Added 122 days ago|11/1/2023 12:37:23 AM
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The rate of a reaction is measured by how fast a reactant is used up or how fast a product is formed. True False
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Updated 5/18/2016 7:16:23 AM
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The rate of a reaction is measured by how fast a reactant is used up to how fast a product is formed. TRUE.
Added 5/18/2016 7:16:23 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [5/18/2016 7:39:34 AM]
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