A Student Is Preparing to Perform a Series of Calorimetry

question 98

Multiple Choice

A student is preparing to perform a series of calorimetry experiments.She first wishes to determine the calorimeter constant (C_cal) for her coffee cup calorimeter.She pours a 50.0 mL sample of water at 345 K into the calorimeter containing a 50.0 mL sample of water at 298 K.She carefully records the final temperature of the water as 317 K.What is the value of C_cal for the calorimeter?

• A) 19 J/K
• B) 28 J/K
• C) 99 J/K
• D) 21 J/K
• E) 76 J/K

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Definitions:

Significance Level

The significance level, often denoted as alpha (α), is the probability of rejecting the null hypothesis when it is actually true, serving as a threshold for determining the statistical significance of an effect.

Degrees of Freedom

The number of values in the final calculation of a statistic that are free to vary.

Dependent Means

Refers to the average outcomes within groups that are related or paired, often used in the analysis of experiments or studies.

Individuals

Refers to distinct objects or entities being studied or observed in research or statistical analysis, often representing people, animals, or units in an experiment or survey.