Consider the Reaction, C₂H₄(g)+ H₂(g) $\rightarrow$ C₂H₆(g), Where $\Delta$ H = -137 KJ

question 68

Multiple Choice

Consider the reaction, C₂H₄(g) + H₂(g) $\rightarrow$ C₂H₆(g) , where $\Delta$ H = -137 kJ. How many kilojoules are released when 3.5 mol of C₂H₄ reacts?

• A)137 kJ are released
• B)570 kJ are released
• C)480 kJ are released
• D)2.0 × 10³ kJ are released

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Definitions:

Synthesis Reactions

Chemical reactions in which two or more substances combine to form a new compound.

Catabolic Reactions

Catabolic reactions are metabolic processes that break down molecules into smaller units, releasing energy.

Emulsion

A stable mixture of two or more immiscible liquids, such as oil and water, often with an emulsifier to maintain stability.

Colloid

A mixture wherein fine particles are dispersed throughout another substance without dissolving, such as in gels or emulsions.