A Block of Dry Ice (Solid CO₂, Density = 1

question 129

Multiple Choice

A block of dry ice (solid CO₂, density = 1.56 g/mL) of dimensions 25.0 cm × 25.0 cm × 25.0 cm is left to sublime (i.e., to pass from the solid phase to the gas phase) in a closed chamber of dimensions 4.00 m × 5.00 m × 3.00 m. Once the sublimation is complete, what is the partial pressure of carbon dioxide in the chamber at 25°C? (R = 0.08206 L • atm/K • mol, 1 atm = 760 mmHg)

• A) 172 mmHg
• B) 107 mmHg
• C) 0.225 mmHg
• D) 0.172 mmHg
• E) 14.4 mmHg

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Definitions:

Region of Rejection

The part of the sample space where, if test statistics fall, the null hypothesis is rejected in favor of the alternative hypothesis in hypothesis testing.

Acceptance

The act of agreeing that something is satisfactory or adequate, often referring to the acceptance of hypotheses or theories based on evidence.

Statistic Probability

The likelihood of an event occurring based on the analysis of a set of predefined numerical data.

Null Hypothesis

In statistical testing, it's the presumption that there is no effect or difference among groups or variables being studied.