Problem: 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) -7.43B) -12.51C) 8.20D) -9.12E) 6.51

FREE Expert Solution

Determine the enthalpy change (ΔH) of the solution using the density at 1.25 g/mL, temperature change at 7.8oand specific heat provided (3.74 grams/g·K) via dimensional analysis

Since the specific heat provided is in J/g·K we need to convert the temperature change of 7.8°C to K

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Problem Details

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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