Solution Calorimetry (VCE SSCE Chemistry): Flashcards

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Solution Calorimetry
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Calorimetry

Technique measuring heat energy in reactions/processes

Calorimeter

Device measuring energy changes in reactions

Temp rise in calorimeter means

Exothermic reaction

Temp fall in calorimeter means

Endothermic reaction

Calibration factor (CF) units

J°C1J \cdot °C^{-1}

Electrical energy formula (calorimetry)

E=VItE = VIt

Calibration factor formula

CF=EΔTCF = \frac{E}{\Delta T}

Energy from calibrated calorimeter

E=CF×ΔTE = CF \times \Delta T

Enthalpy change formula

ΔH=En\Delta H = \frac{E}{n} (n=moles)

ΔH\Delta H sign if temp increases

Negative (exothermic)

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