A 400-G Block of Ice at -15

question 67

Multiple Choice

A 40.0-g block of ice at -15.00°C is dropped into a calorimeter (of negligible heat capacity) containing water at 15.00°C.When equilibrium is reached,the final temperature is 8.00°C.How much water did the calorimeter contain initially? The specific heat of ice is 2090 J/kg ∙ K,that of water is 4186 J/kg ∙ K,and the latent heat of fusion of water is 33.5 × 10⁴ J/kg.

• A)302 g
• B)345 g
• C)405 g
• D)546 g
• E)634 g

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Definitions:

F-Ratio

A statistic used in ANOVA to compare the variance among group means to the variance within groups; a measure of variance between groups relative to variance within groups.

Main Effect

In statistical analysis, the direct impact of an independent variable on a dependent variable, disregarding the influences of or interactions with other variables.

Reject

In statistics, to refuse the null hypothesis based on evidence from sample data meeting a predetermined significance level.

Interaction Effect

In statistics, the effect that an independent variable has on the outcome variable depends on or varies according to the levels of one or more other independent variables.