Any reaction that releases 125 kcal of energy can be classified as a. activated b. oxidation c. exothermic d. reduction e. endothermic

Q: Consider the following reaction: 2C2H6 (g) + 7O2 (g) → 4CO2 (g) + 6H2O (g) Which substance is…

A: The substance whose oxidation number increases is oxidized while the one whose oxidation number…

Q: 6. The number of electrons transferred in a half-reaction а. corresponds to the change in oxidation…

A: Oxidation state: The oxidation state can be defined by saying that the total number of electrons…

Q: 1. A reactor is being designed to treat wastewater containing 500 grams methanol (CH3OH) per day. In…

A: Given: A reactor is being designed to treat wastewater containing 500 grams methanol per day. In the…

Q: which of the following substances is commonly used to reduce soil acidity? Ammonium sulphate Sodium…

A: a) For reducing the acidity of the soil, we need a basic substance. Of the given options, only…

Q: Determine the oxidation number of SS in H2SO3H2SO3 A. +4 B. +7 C. +3 D. +5 E. +6

A:

Q: What type of chemical reaction is described by the following equation? CH4 + 202 → CO₂ + 2H₂0 A…

A: Given reaction is :  CH4  + 2O2  ---> CO2  + 2H2O  Here methane reacts with oxygen to form carbon…

Q: What type of reaction is described by the following chemical reaction Cl2          +    NaBr     à…

A: When one or more atoms or molecules react with each other to produce one or more product is called a…

Q: In an oxidation-reduction reaction, oxidation is defined as the a. Loss of electrons O b. Loss of…

A: Redox reaction is an reaction in which oxidation and reduction will occur simultaneously. Oxidation…

Q: Of the following metals, which ions are most easily reduced? c. aluminum 17. a. iron b. mercury d.…

A: The approach for this question is based on reactivity series or electrochemical series. The order of…

Q: oxidation-reduction

A: HBr is an strong acid and this acid is neutralizated with base LiOH and Produces salt water so this…

Q: Identify the following reaction as oxidation - reduction, combustion, condensation or hydrolysis.…

A: We have to choose the correct option.

Q: Determine the oxidation number of manganese in NaMnO4 A. +3 B. +4 C. +5 D. +7 E. +6

A:

Q: 1. What is the reduction product of iodine?    a. Dehydroascorbic acid   b. Iodide   c. Iodine   d.…

A: Ascorbic acid and iodine undergo redox reaction

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.