Given the Data in the Table Below,ΔH°_rxn for the Reaction

question 3

Multiple Choice

Given the data in the table below,ΔH°_rxn for the reaction 3Cl₂ (g) + PH₃ (g) → PCl₃ (g) + 3HCl (g)
Is ________ kJ.

• A)-385.77
• B)-570.37
• C)570.37
• D)385.77
• E)The ΔH°_f of Cl₂ (g)is needed for the calculation.

---

Definitions:

Null Hypothesis

A hypothesis that assumes no statistical significance exists in a set of given observations and that any observed difference is due to chance.

T = 1.965

A specific value often used in statistical analysis, particularly in hypothesis testing, where it represents a critical value in a t-distribution.

Critical Value

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

α

Denotes the level of significance in hypothesis testing, commonly set at 0.05, indicating a 5% risk of concluding an effect exists when it does not.