In your initial post to the discussion, include the following parts: Write out two real-life scenarios similar to the one above. Be sure to include the equation that your classmates will solve in each scenario. Remember to ask your classmates to solve the equation and name the limiting reactant.
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.
The book aims to help you understand chemical equations and quantities using an example involving sandwiches. It notes that if you have 100 slices of meat, but only 10 pieces of bread, you are limited to making only five sandwiches, despite the huge amount of meat you may have left over. In that scenario, the bread is the limiting reagent. For this discussion, we will ask you to come up with your own scenarios involving limiting reagents for your classmates to solve. For example, you could write:
Imagine you work in a gift-packaging store. To package presents, you need one bag plus four pieces of tissue paper. The chemical equation would be:
1 gift bag + 4 pieces of tissue paper = 1 packaged present.
If you had 50 bags and 24 pieces of tissue paper, how many packaged presents could you make? What would the limiting reactant be?
In your initial post to the discussion, include the following parts:
- Write out two real-life scenarios similar to the one above.
- Be sure to include the equation that your classmates will solve in each scenario.
- Remember to ask your classmates to solve the equation and name the limiting reactant.
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