What Would Be the Appropriate Equilibrium Temperature of a System

question 48

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, ΔHfusion = 6.02 kJ/mol.]

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

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Definitions:

Parallel Circuit

An electrical circuit in which the components are connected so that the same voltage is applied to each component.

Resistance To Flow

In the context of electricity, it refers to the opposition that a material presents to the passage of electric current, typically called electrical resistance.

Holding Tank

A container designed to hold a substance temporarily, often used in systems requiring the accumulation of material before further processing or disposal.

Return Path

The return path is the conductive path that allows current to return to its source in an electrical circuit, completing the circuit loop.