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

question 121

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 by 7.80 °C? (The specific heat of the solution is 3.74 joules/gram-K.)

• A)-7.43
• B)-12.51
• C)8.20
• D)-9.12
• E)6.51

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