Hydrogen Peroxide (H₂O₂) Decomposes According to the Following Equation

question 82

Multiple Choice

Hydrogen peroxide (H₂O₂) decomposes according to the following equation. H₂O₂(l) → H₂O(l) + ½O₂(g) .
What is K_P for this reaction at 25°C? (ΔH° = -98.2 kJ/mol, ΔS° = 70.1 J/K • mol, R = 8.314 J/K • mol)

• A) 1.3 × 10^-21
• B) 20.9
• C) 3.46 × 10¹⁷
• D) 7.4 × 10²⁰
• E) 8.6 × 10⁴

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Definitions:

One-way ANOVA

A statistical test used to determine if there are statistically significant differences between the means of three or more independent (unrelated) groups based on one independent variable.

F-ratio

A statistical measure used in analysis of variance (ANOVA) to determine the degree of variation between sample means in comparison to variation within the samples.

Critical Value

A point on the test distribution that is compared to the test statistic to decide whether to reject the null hypothesis.

Degrees of Freedom

Refers to the number of independent values or quantities which can be assigned to a statistical distribution or a statistical test.