What might be the result if you did not grind the two initial reactants sufficiently?

A. Yield would decrease, but purity would not be affected.
B. Both yield and purity would decrease.
C. Yield would not be affected, but purity would be decreased.
D. Neither yield nor purity would be affected.

Option A) Yield would decrease, but purity would not be affected.

Explanation:

Sufficient grinding of the two initial reactants will provide a wider surface area for the reactants particles to combine more rapidly, forming products that still retain the purity.

On the other hand, when reactants are not properly grinded the yield of products decrease due to lesser surface area between reactants particles, while the purity of product formed is unaffected.

Thus, the answer is option A

"standard molar enthalpy:

h2o ( liquid water ) : - 285.8 kj/mole

h2o ( water vapor ) : - 241.8 kj / mole.

δhrxn = - 241. 8 - ( - 285.8 )= -241.8 + 285.8 = 44.0

answer: 44.0 kj"

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.