metal object with a mass of 145.25 g is heated to 97.5 °C and then transferred to a calorimeter containing 84.58 g of water at 21.5 °C. If the water and metal reach a final (equilibrium) temperature of 31.8 °C, what is the specific heat of the metal objec
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
Differences in equipment used for obtaining measurements in the lab can introduce experimental errors into calculated values. To minimize the effects of these experimental errors on our calculated values we conduct multiple trials of an experiment and obtain an average of the values. Calculate the percent error in the specific heat value that you determined experimentally. The accepted specific heat value for Aluminum is 0.900 J/g°C. % ?????????? = � ???????? ???????????? − ???????????????? ?????????? ???????????????? ?????????? � ?? 100% 2. When conducting this experiment, you are usually instructed to transfer the metal quickly from the oven or hot water bath to the calorimeter. Why would you need to do this? _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________
3. A metal object with a mass of 145.25 g is heated to 97.5 °C and then transferred to a calorimeter containing 84.58 g of water at 21.5 °C. If the water and metal reach a final (equilibrium) temperature of 31.8 °C, what is the specific heat of the metal object? Show all work for full credit.
A metal object with a mass of 145.25 g is heated to 97.5 °C and then transferred to a calorimeter containing 84.58 g of water at 21.5 °C. If the water and metal reach a final (equilibrium) temperature of 31.8 °C, what is the specific heat of the metal object
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