mass of the calorimeter 162.2 g capacity of the calorimeter 1545.6 Mass of the calorimeter with 140 ml of water 271.3 g Water temperature 22 °C Temperature of the mixture 3 °C Mass of the calorimeter + mixture 310.3 g Calculate 11- ∆T H2O = (Tm - T cold H2O) = (Tm - T cold H2O) = 12- ∆T of ice melt = (T mixture - 0 °C) = (T mixture - 0 °C) = 13- ∆T ° C = ∆T cold H2O: 14- Mass of water = ( mass of water + 140 ml of water - mass of empty calorimeter) =. 15- Mass of ice = ( mass of calorimeter + mixture ) - (mass of water + 140 ml of water) =
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.
| mass of the calorimeter | 162.2 g |
| capacity of the calorimeter | 1545.6 |
| Mass of the calorimeter with 140 ml of water | 271.3 g |
| Water temperature | 22 °C |
| Temperature of the mixture | 3 °C |
| Mass of the calorimeter + mixture | 310.3 g |
Calculate
11- ∆T H2O = (Tm - T cold H2O) = (Tm - T cold H2O) =
12- ∆T of ice melt = (T mixture - 0 °C) = (T mixture - 0 °C) =
13- ∆T ° C = ∆T cold H2O:
14- Mass of water = ( mass of water + 140 ml of water - mass of empty calorimeter) =.
15- Mass of ice = ( mass of calorimeter + mixture ) - (mass of water + 140 ml of water) =
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