A Scientist Is Performing a Calorimetric Test with an 800-G

question 1

Multiple Choice

A scientist is performing a calorimetric test with an 800-g sample of an unknown substance.She finds that the sample absorbs 152 calories for every ºC it rises in temperature while in its solid phase.What might the substance be?

• A)granite: c = 0.19 kcal/kg·ºC
• B)copper: c = 0.09 kcal/kg·ºC
• C)lead: c = 0.03 kcal/kg·ºC
• D)iron: c = 0.11 kcal/kg·ºC
• E)wood: c = 0.40 kcal/kg·ºC

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Definitions:

Sunk Costs

Costs that have already been incurred and cannot be recovered or refunded.

Marginal Analysis

Marginal analysis evaluates the impact of a slight change in production or consumption, used to make decisions about allocating resources most efficiently.

Risk Aversion

The tendency of individuals or entities to prefer outcomes with less uncertainty, avoiding risks in decision-making.

Economic Payoff

The financial return or profit resulting from an investment or action.