CPT Chemical Process Fundamentals & Reactions 2

Question 1

What is stoichiometry used for in chemical process operations?

Accepted Answer

Calculating the quantitative relationships between reactants and products

Answer

Stoichiometry uses balanced chemical equations to calculate the exact amounts of reactants needed and products formed in a chemical reaction.

Question 2

What is activation energy in the context of chemical reactions?

Accepted Answer

The minimum energy required for reactants to form products

Answer

Activation energy is the minimum energy that reactant molecules must have for a collision to result in a chemical reaction.

Question 3

In a neutralization reaction between a strong acid and a strong base, what are the typical products?

Accepted Answer

A salt and water

Answer

A neutralization reaction between an acid (H⁺ donor) and a base (OH⁻ donor) produces a salt and water.

Question 4

In terms of electron transfer, what is oxidation?

Accepted Answer

Loss of electrons by a species

Answer

Oxidation is defined as the loss of electrons by a substance; the mnemonic OIL RIG (Oxidation Is Loss, Reduction Is Gain) helps remember this.

Question 5

What does the equilibrium constant (Keq) indicate about a chemical reaction?

Accepted Answer

The ratio of product concentrations to reactant concentrations at equilibrium

Answer

Keq is the ratio of product concentrations to reactant concentrations (each raised to their stoichiometric coefficients) at equilibrium, indicating the extent of reaction.

(CPT) Certified Process Technician Practice Test

(CPT) Certified Process Technician Practice Test

CPT Chemical Process Fundamentals & Reactions 2