Consider the Exothermic Combustion of Coal

question 53

Multiple Choice

Consider the exothermic combustion of coal.Which of the following could increase the rate of reaction?

• A) using smaller pieces of coal
• B) increasing the concentration of oxygen
• C) lowering the temperature
• D) both (a)and (b)are correct
• E) choices (a),(b)and (c)are all correct

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Definitions:

Alcoholic Fermentation

A biological process by which sugars such as glucose, fructose, and sucrose are converted by yeast or bacteria into cellular energy, producing ethanol and carbon dioxide as side products.

Acetaldehyde

A volatile, flammable, and colorless liquid compound, which is a common intermediate in the synthesis of various chemicals and a byproduct of alcohol metabolism.

NADH

Nicotinamide adenine dinucleotide (NADH) is a coenzyme found in all living cells, involved in redox reactions, carrying electrons from one reaction to another.

Ethanol

A volatile, flammable, colorless liquid alcohol widely used as a biofuel, in alcoholic beverages, and as a solvent in the pharmaceutical industry.