mixtu gaseous rea put into a cylinder, where a mical reaction turns them into gaseous products. The cylinder has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of 1 atm. The cylinder is also submerged in a large insulated water bath. (See sketch at right.) From previous experiments, this chemical reaction is known to release 199. kJ of energy. The temperature of the water bath is monitored, and it is determined from this data that 232. kJ of heat flows into the system during the reaction. Is the reaction exothermic or endothermic? O exothermic O endothermic 1 atm pressure gases piston cylinder water bath

Q: A public water supply was found to contain 0.8 partper billion (ppb) by mass of chloroform, .(a) How…

A: Concentration is the way of expressing the amount of substance with reference to total amount of the…

Q: is a weak electrolyte; and scandium(II1) sulfate, Scy(SO4)3, is a strong electrolyte. What are the…

A: A strong electrolyte completely dissociates, a weak electrolyte partially dissociates while an…

Q: 2) How many milligrams of MgSO4 are required to prepare 43 mL of a 1.60 mM solution?

A: Molarity (M) of a solution is defined as the number of moles of solute present in the 1.0 liter of…

Q: Masses :  Ca = 40.08 g   S= 32.07 g  O= 16.00 g  A 35.0 mL sample of CaSO4 was evaporated to…

A:

Q: ercentage by mass of aluminum iodide in the solution is %.

A:

Q: Use the References to access important values if needed for this question. A student weighs out a…

A: Given -> Weight of KI = 3.47 gm  Volume= 100 ml = 0.100 L (1L = 1000ml)

Q: A 300 ml solution of 0.55M sodium Chloride solution was evaporated. How much salt by weight was…

A:

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.