What Would Be the Appropriate Equilibrium Temperature of a System

question 52

Multiple Choice

What would be the appropriate equilibrium temperature of a system obtained by adding 25.0 g of ice at 0 °C to 250.0 mL of "hot" (80 °C) coffee,assuming that the heat capacity and density of the coffee are the same as for pure water (4.18 J g^-1 °C^-1 and 0.997 g mL^-1) ,and also assuming negligible heat transfer with the surroundings? [For water,Δ_fusH = 6.02 kJ/mol.]

• A)33 °C
• B)40 °C
• C)65 °C
• D)73 °C
• E)79 °C

---

Definitions:

Fair Value Accounting

An accounting approach where assets and liabilities are recorded at their current market value, rather than their historical cost.

Financial Statements

Documents that report on a company's financial health and performance, including the balance sheet, income statement, and cash flow statement, offering insight into its operations and financial position.

Hierarchy Level

The level or rank of an entity within a broader organizational or systemic structure, often indicating its authority or responsibility level.

Fair Values

An estimate of the market value of an asset or liability, based on current prices in an open market.