5. Describe enthalpy of formation. Please select all answers that apply: a) Standard enthalpy of formation is the amount of change in enthalpy evolved during the formation of 1 mole of the substance from its constituent elements with all elements in their standard states. b) Standard enthalpy of formation is the energy associated with chemical bonds. c) Standard enthalpy of formation is the amount of change in enthalpy evolved during the formation of 100 moles of the substance from its constituent elements with all elements in their standard states. d) Standard enthalpy of formation is the amount of change in enthalpy evolved during the formation of 1 Kg of the substance from its constituent elements with all elements in their standard states. e) Standard enthalpy of formation is the energy associated with heat transfer.

5. Describe enthalpy of formation. Please select all answers that apply: a) Standard enthalpy of formation is the amount of change in enthalpy evolved during the formation of 1 mole of the substance from its constituent elements with all elements in their standard states. b) Standard enthalpy of formation is the energy associated with chemical bonds. c) Standard enthalpy of formation is the amount of change in enthalpy evolved during the formation of 100 moles of the substance from its constituent elements with all elements in their standard states. d) Standard enthalpy of formation is the amount of change in enthalpy evolved during the formation of 1 Kg of the substance from its constituent elements with all elements in their standard states. e) Standard enthalpy of formation is the energy associated with heat transfer.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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5. Describe enthalpy of formation.
Please select all answers that apply:
a) Standard enthalpy of formation is the amount of change in enthalpy evolved during the formation of 1 mole of
the substance from its constituent elements with all elements in their standard states.
b) Standard enthalpy of formation is the energy associated with chemical bonds.
c) Standard enthalpy of formation is the amount of change in enthalpy evolved during the formation of 100 moles
of the substance from its constituent elements with all elements in their standard states.
d) Standard enthalpy of formation is the amount of change in enthalpy evolved during the formation of 1 Kg of the
substance from its constituent elements with all elements in their standard states.
e) Standard enthalpy of formation is the energy associated with heat transfer.

6. Describe the meaning of stoichiometry in reactions.
Please select all answers that apply:
a) Stoichiometry allows for the calculation of reactants and products in a chemical reaction.
b) Stoichiometric balance is prevalent in complete combustion.
c) Stoichiometry allows for complete balance of species in a reaction.
d) Stoichiometry is the relationship between the relative quantities of substances taking part in a reaction
or forming a compound, typically a ratio of even integers.
e) Stoichiometry is the relationship between the relative quantities of substances taking part in a reaction
or forming a compound, typically a ratio of odd integers.

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