In this experiment, the starting temperature of the water receiving the heat from the metal is _____, and the starting temperature of the metal is _____.     the temperature of the water inside the calorimeter; the temperature of the boiling water     the temperature of the boiling water; the temperature of the water inside the calorimeter     the temperature of the water inside the calorimeter; the temperature of the water inside the calorimeter     the temperature of the boiling water; the temperature of the boiling water

Q: Use the given information to determine the enthalpy of the reaction 2 M(s) + 3 Cl,(g) – 2 MCI, (s)

A: Step : 1             Find the enthalpy of the reaction.

Q: A 0.500-g sample of KCl is added to 50.0 g of water in a calorimeter (as shown). If the temperature…

A: In case of a calorimeter we can relate the heat change of a system to the product of the mass of the…

Q: What is the enthalpy change when 189 g of NH3 are produced? The standard enthalpy of formation of…

A: Standard enthalpy of formation :- The enthalpy change accompanied the process of formation of one…

Q: A 4.81 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: Solution :        The heat of dissolution is defined as an enthalpy change related to the…

Q: A student performs a calorimetry experiment. The student combines 100. g of 0.40 M HC1(aq) with 100.…

A: Heat absorbed by the particular species = mass × heat capacity × temperature change

Q: The principal component of LPG is butane, C4H10(g). If combustion of 1 mole of butane produces 126…

A:

Q: In a constant-pressure calorimeter, 70.0 mL of 0.300 M Ba(OH)₂ was added to 70.0 mL of 0.600 M HC1.…

A: The question is based on the concept of chemical thermodynamics . we have been given experimental…

Q: You are riding on your bike and stop pedaling, coasting along the road. Eventually, your bike slows…

A: According to the first law of thermodynamics, the energy of the universe remains constant. For a…

Q: If 2C4H10 + 13O2 --> 8CO2 + 1OH2O is exothermic, is energy (heat) a reactant or product?

A: A reaction in which heat is released is called exothermic reaction.

Q: When sulfuric acid dissolves in water, a great deal of heat is given off. The enthalpy change for…

A: Answer:-This question is answered by using the simple concept of calculation of heat released using…

Q: True or False: The test tube in which a chemical reaction is taking place feels warmer to the touch.…

A:

Q: 1. A thermometer placed in a solution undergoing a chemical reaction indicates an increase in…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Determine the most likely identity of the unknown metal sample. Mass of empty beaker = 50.45 g Mass…

A: Given: Mass of water = 30.81 g. Mass of metal = 54.02 g. Initial temperature of metal = 102.5 oC…

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.