The Value of ΔH° for the Reaction Below Is -72

question 131

Multiple Choice

The value of ΔH° for the reaction below is -72 kJ. __________ kJ of heat are released when 4.0 mol of HBr is formed in this reaction. H₂ (g) + Br₂ (g) → 2HBr (g)

• A)126
• B)72
• C)0.44
• D)144
• E)-72

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Definitions:

Interval Scale

A scale of measurement that shows the order of values and the exact differences between them, but without a true zero point.

Ordinal Scale

A scale of measurement where data is ordered, but the differences between data points cannot be assumed to be equal.

Statistical Treatments

Methods applied to data for the purpose of drawing conclusions or making inferences, including statistical tests and computations.

Describing Results

The process of reporting the findings of a study, including the presentation and interpretation of data.