It Can Be Shown That the Change in Entropy in Heating

question 53

Multiple Choice

It can be shown that the change in entropy in heating or cooling a sample is given by the relation ΔS = mc ln (T_F/T_i) , where m is the mass of the sample, c is the specific heat of the sample, and T_F and T_i are the final and initial temperatures, respectively. What is the change in entropy when 10.0 grams of lead with a specific heat of 0.452 J/g K is heated from 10.0°C to 50.0°C?

• A) 0.45 J/K
• B) 0.60 J/K
• C) 0.90 J/K
• D) 0.30 J/K

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Definitions:

Debt-To-Equity Ratio

An economic indicator reflecting the comparative levels of debt and shareholders' equity utilized in financing a company's assets.

Financial Statements

Formal records of the financial activities and position of a business, person, or other entity, typically comprising the balance sheet, income statement, and cash flow statement.

Debt-To-Equity Ratio

A measure revealing the ratio of debt to shareholders' equity in the financing structure of a company's assets.

Balance Sheet

A financial statement that provides a snapshot of a company's financial position at a specific point in time, detailing assets, liabilities, and equity.