A calorimeter contains 100.0 g of water at 39.8 ºC. An 8.23 g metal object at 50.0 ºC is placed in the calorimeter. When equilibrium has been reached, the new temperature of the water and metal object is 40.0 ºC. What type of metal is the object made from (Refer to Table 1 )? (Assume that all the heat released by the metal was absorbed by the water.) Show all work with units. The answer must contain the correct units and the correct number of significant figures, please
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.
A calorimeter contains 100.0 g of water at 39.8 ºC. An 8.23 g metal object at 50.0 ºC is placed in the calorimeter. When equilibrium has been reached, the new temperature of the water and metal object is 40.0 ºC. What type of metal is the object made from (Refer to Table 1 )? (Assume that all the heat released by the metal was absorbed by the water.) Show all work with units. The answer must contain the correct units and the correct number of significant figures, please
Answer:-
This question is answered by using the simple concept of calorimetry which involves the heat lost is equal to heat gained. Then specific heat capacity is calculated.
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