Question

For the reaction NaCl (aq) + AgNO3 (aq) → AgCl(s) + NaNO3(aq), will ΔH be greater than, equal to or less than ΔU?​

Answer 1

Answer:

For the reaction NaCl (aq) + AgNO3 (aq) → AgCl(s) + NaNO3(aq), will ΔH be greater than, equal to or less than ΔE? Answer: ΔH will be ΔE. Write the mathematical relationship between heat, internal energy, and work done on the system.

Answer 2

For this reaction

ΔH is equal to  ΔE

which means it is  equal to  ΔU

as both  ΔU and  ΔE can be used interchangeably.

Given reaction:

The reaction given is

NaCl (aq) + AgNO3 (aq) → AgCl(s) + NaNO3(aq)

ΔH is change in enthalpy .

Enthalpy is a measure of the total amount of energy consist by a system.

ΔU is the adiabatic work done by the system

this is a spontaneous reaction

the AgCl precipitates removing Ag+ and Cl- ions

It is a exothermic reaction hence the Gibbs free energy change is negative.

the entropy change is  negative and the less disorder is produced.

del G for this equation is negative , so  del H must be or is negative.

Hence it is equal to the energy or  ΔE of the system .

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