What Is the Enthalpy Change (In KJ)of a Chemical Reaction

question 146

Multiple Choice

What is the enthalpy change (in kJ) of a chemical reaction that raises the temperature of 250.0 mL of solution having a density of 1.25 g mL^-1 by 10.2 °C? (The specific heat of the solution is 3.733 J g^-1 K^-1.)

• A)-7.43 kJ
• B)-12.51 kJ
• C)8.20 kJ
• D)-11.9 kJ
• E)6.51 kJ

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Definitions:

Kidney

A pair of bean-shaped organs that filter waste products from the blood and excrete them, along with water, as urine.

Synovial Fluid

Slippery fluid found inside synovial joints and bursae; produced by the synovial membranes.

Fluid Compartments

Distinct regions within the body where bodily fluids are compartmentalized, such as the intracellular and extracellular compartments.

Extracellular

Outside the cell.