You are mixing CaCl2in water in a coffee cup calorimeter when you notice that the outer cup has a large hole in the bottom. You complete the experiment anyways and use your measured temperature change to find the enthalpy of neutralization. The reaction is exothermic. How does your calculated value compare to the actual value? Since the reaction is exothermic please state if the magnitude goes up, down or stays the same. Use equations as appropriate
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.
You are mixing CaCl2in water in a coffee cup calorimeter when you notice that the outer cup has a large hole in the bottom. You complete the experiment anyways and use your measured temperature change to find the enthalpy of neutralization.
The reaction is exothermic.
How does your calculated value compare to the actual value? Since the reaction is exothermic please state if the magnitude goes up, down or stays the same. Use equations as appropriate.
Given : substances Cacl2 and H2O.
Calorimeter
To find : appropriate chemical equation.
Solution : As we know that, when we calculate the mass of product form any substance or more substance then the amount of product that is formed is known as theoretical yield. And generally theoretical yield is greater than actual yield.
And as we know,
Percentage yield = actual yield / theoretical yield
Step by step
Solved in 2 steps
