Most baths take 30.00 gallons of water. If the density of water is 1.000 g/mL, and 1 gallon = 3.785 Liters, calculate how many grams of nitroglycerin (C3H5N3O9) it would take to heat a bathtub of water from 25.00 °C to 75.00 °C. (Specific heat of water is still 4.184 J/g°C).
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.
h5.) Most baths take 30.00 gallons of water. If the density of water is 1.000 g/mL, and 1
gallon = 3.785 Liters, calculate how many grams of nitroglycerin (C3H5N3O9) it would
take to heat a bathtub of water from 25.00 °C to 75.00 °C. (Specific heat of water is still
4.184 J/g°C).
4 C3H5N3O9 12 CO2 + 10 H2O + 6 N2 + O2 H = -5678 kJ
6.) If you used the nitroglycerin in problem 5 to fill a volume with the product gases, and
the total pressure is measured to be 5.31 atm, what is the partial pressure of each gas?
(Explain what you can).
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