According to the Following Reaction,how Much Energy Is Evolved During

question 22

Multiple Choice

According to the following reaction,how much energy is evolved during the reaction of 0.111 mol B₂H₆ and 0.252 mol Cl₂ (Both gases are initially at STP) ? The molar mass of B₂H₆ is 27.67 g/mol.
B₂H₆(g) + 6 Cl₂(g) → 2 BCl₃(g) + 6 HCl(g) ΔH°_rxn = -1396 kJ

• A) 58.7 kJ
• B) 156 kJ
• C) 215 kJ
• D) 352 kJ
• E) 508 kJ

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Definitions:

Chronological Age

The amount of time that has elapsed since an individual's birth, typically measured in years, months, and days.

Mental Age

A measure of an individual's mental aptitude based on the average abilities of a certain age group.

Chronological Age

The actual age of a person or object, measured in years from the date of birth or creation.

Alfred Binet

A French psychologist who, with his colleague Théodore Simon, developed the first practical intelligence test in the early 20th century.