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What is the very top of the curve on a potential energy diagram known as.
heat content of the products minus the heat content of the reactants
-571.6 kJ
-787 kJ
NH4Cl(s) --> NH4+(aq) + Cl-(aq)
decreasing the activation energy
This change exposes more reactant particles to a possible collision
Activated complex
The sign of H is positive, and the products have more potential energy than the reactants.
Which statement describes characteristics of an endothermic reaction?
heat content of the products minus the heat content of the reactants
-571.6 kJ
-787 kJ
NH4Cl(s) --> NH4+(aq) + Cl-(aq)
decreasing the activation energy
This change exposes more reactant particles to a possible collision
Activated complex
The sign of H is positive, and the products have more potential energy than the reactants.
The heat of reaction (delta H) is equal to the
heat content of the products minus the heat content of the reactants
-571.6 kJ
-787 kJ
NH4Cl(s) --> NH4+(aq) + Cl-(aq)
decreasing the activation energy
This change exposes more reactant particles to a possible collision
Activated complex
The sign of H is positive, and the products have more potential energy than the reactants.
According to Table I, what is the value of delta H if 2 moles of C(s) are added to oxygen (O2) to produce carbon dioxide (CO2)
heat content of the products minus the heat content of the reactants
-571.6 kJ
-787 kJ
NH4Cl(s) --> NH4+(aq) + Cl-(aq)
decreasing the activation energy
This change exposes more reactant particles to a possible collision
Activated complex
The sign of H is positive, and the products have more potential energy than the reactants.
Based on Table I, which reaction is endothermic?
heat content of the products minus the heat content of the reactants
-571.6 kJ
-787 kJ
NH4Cl(s) --> NH4+(aq) + Cl-(aq)
decreasing the activation energy
This change exposes more reactant particles to a possible collision
Activated complex
The sign of H is positive, and the products have more potential energy than the reactants.
According to Table I, what is the heat of reaction for the formation of 2 moles of H2O(l) from hydrogen and oxygen gas
heat content of the products minus the heat content of the reactants
-571.6 kJ
-787 kJ
NH4Cl(s) --> NH4+(aq) + Cl-(aq)
decreasing the activation energy
This change exposes more reactant particles to a possible collision
Activated complex
The sign of H is positive, and the products have more potential energy than the reactants.
A catalyst can increase the rate of a reaction by
heat content of the products minus the heat content of the reactants
-571.6 kJ
-787 kJ
NH4Cl(s) --> NH4+(aq) + Cl-(aq)
decreasing the activation energy
This change exposes more reactant particles to a possible collision
Activated complex
The sign of H is positive, and the products have more potential energy than the reactants.
Which statement explains why the speed of some chemical reactions is increased when the surface area of the reactant is increased?
heat content of the products minus the heat content of the reactants
-571.6 kJ
-787 kJ
NH4Cl(s) --> NH4+(aq) + Cl-(aq)
decreasing the activation energy
This change exposes more reactant particles to a possible collision
Activated complex
The sign of H is positive, and the products have more potential energy than the reactants.
Check it!