A(s) + 2 B(g) C(g) A(g) + B(g) → 3 C(g) A(s) + B(s) C(g) 2 A(g) + 3 B(g) → 4 C(g)

Q: Given the following thermochemical equations,   NO(g) + O3(g) →NO2(g) + O2(g) ΔH = −198.9 kJ/mol…

A: In the given question we have to calculate the change in enthalpy by using the Hess's law.

Q: osphorus pentachloride decomposes according to the chemical equation…

A: Welcome to bartleby!

Q: CHEMWORK The production capacity for acrylonitrile (C3H3N) in the United States is over 2 billion…

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Q: the following equation. 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g) ΔH⁰rxn   = −902.0 kJ If this…

A: Number of moles of ammonia reacted = given mass / molar mass = 7021 g/ 17.031 g/mole = 412.2 mole

Q: When methanol, CH3OH, is burned in the presence of oxygen gas, O2, a large amount of heat energy is…

A: Required amount of reactant calculation to produce given amount of heat using the given value of…

Q: a) Balance the equation.

A: Step : 1                The required answer for the question is follows as :

Q: Suppose a 1-m^3 sample of air at sea-level pressure, containing 7g of water vapor, was cooled and…

A:

Q: The production capacity for acrylonitrile (C3H3N) in the United States is over 2 billion pounds per…

A: Answer: This question is based on the concept of limiting reagent. Limiting reagent is the reactant…

Q: How many moles of methane are produced when 85.1 molesmoles of carbon dioxide gas react with excess…

A: Number of moles of any substance is the ratio of mass of the substance to the molar mass of that…

Q: Using Hess Law and based on the equations, find enthalpy changes, AHm, for this reaction; NaH4() +…

A: Here we will perform some algebraic operation to find the enthalpy value whose enthalpy is unknown…

Q: A pint of premium ice cream can contain 1100 Calories. What mass of fat, in grams and pounds, must…

A: Given the average number of calories produced by combustion of 1 gram of fat is 9.1 calorie But also…

Q: Consider these reactions, where M represents a generic metal. 2M(s) + 6HCl(aq) → 2 MCI, (aq) +…

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Q: Determine the enthalpy of reaction for the following: CH3CH=CH(s) + 4.502(g) → 3CO2(g) + 3H₂0 (1)

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Q: Be sure to answer all parts.   Given the thermochemical equation for photosynthesis,   6CO2(g) +…

A: Carbon dioxide reacts with water in the presence of sunlight to form glucose and oxygen. The…

Q: C+02 CO₂(g) H₂ (g)+1/2 O₂(g) →H2O(1) C14H10(s)+33/2 O₂(g) →14CO₂(g)+5H₂O(1) Using Hess's law combine…

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Q: (4) The normal melting point of gold is 1064.5 °C and its boiling point is 2660 °C. (a) Convert…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: = The extraction of aluminum metal from the aluminum hydroxide found in bauxite by the Hall-Héroult…

A:

Q: The production capacity for acrylonitrile (C3H3N) in the United States is over 2 billion pounds per…

A: A limiting reagent is the species that is used up first in the chemical reaction. It decides the…

Q: You are given the following data: 2H (g) H₂(g) 2Br(g) → Br₂ (g) 2HBr(g) → H₂(g) + Br₂ (g) kJ mol x10…

A: Given

Q: 3. For the following reaction : NO₂(g) → NO(g) + O(g) - A plot of 1/[NO2] vs t yields a straight…

A: #3: The chemical equation to be considered is: NO2(g) → NO(g) + O(g)  In the graphical determination…

Q: Anna was asked to identify and explain if the equation CO2 (l) → CO2 (g) was an endothermic or…

A: CO2 (l) → CO2 (g)  The above reaction is an example of endothermic reaction. Beacuse  here only…

Q: (a) how can you use this observation to infer something about the specific heat of the materials in…

A: (a)

Q: Use Hess’s Law to determineDH for the reaction     C3H4 (g)  +  2 H2 (g) ®  C3H8 (g),  given that…

A: When a chemical reaction occur, some bonds are broken and some are formed.This leads to an energy…

Q: You are given the following data: H₂(g) → 2H (g) Br₂(g) → 2 Br (g) 2HBr(g) → H₂(g) + Br₂ (g) kJ mol…

A: The four chemical reactions are given as follows:...(i)...(ii)...(iii)...(iv)The standard enthalpy…

Q: A) CO2(g)+OH−(aq)→ Express your answer as a chemical equation. Identify all of the phases in your…

A: A) The given chemical equation is, CO2(g) + OH−(aq)→ The complete equation along with all the phase…

Q: Diamond and graphite are two crystalline forms of carbon. At 1 atm and 25°C, diamond changes to…

A: Hess's law states that the energy change in an overall chemical reaction is equal to the sum of…

Q: Calculate the AH of the following reaction using the reactions given below C3HS (g) → 3 C(s) + 4…

A: The given reaction is, C3H8(g) ---> 3C(s) + 4H2(g)   The equation for the given reaction are, 1)…

Q: 3. Given the following equation: 2H2(g) + 02(g) → 2H20(1) ΔН = -484 kJ/mol What is the enthalpy…

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Q: Identify the relation between the two molecules in each of the following four sets of molecules. (A)…

A: To find the relation between the given molecules

Q: onsider these reactions, where M represents a generic metal. 2 M(s) + 6HCl(aq) → 2 MC1₂ (aq) +…

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Q: Calculate the value at Ko for the hypothetical reaction: Q(g) + 2X(g) = M(g)

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Q: Acetylene torches are used for welding. These torches use a mixture of acetylene gas, C2H2C2H2, and…

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Q: Given the following data 2 CIF (g) + O₂(g) → Cl₂ O(g) + F₂O(g) 2 CIF3 (9) +202(g) → Cl₂ O(g) +…

A: According to Hess law of heat summation , enthalpy change of net reaction remains same whether it…

Q: A student mixes 67.0 mL of a 2.01 M sodium hydroxide solution with 22.4 mL of 6.45 M hydrochloric g…

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Q: Ba(OH)2 8H20(s) + 2NH4NO3(aq) → calorimeter containing 200.0 mL of 0.01 M NH4NO3, changing the…

A: 1.) To calculate the Enthalpy change of reaction , formula used is : ∆Hrxn = - q / n  where , q =…

Q: 6. (a) What is ther difference between Environmental Science and Green Chemistry? (b) How can a…

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Q: When 130. mL of 0.204 M NaCl(aq) and 130. mL of 0.204 M AgNO3(aq), both at 21.1°C, are mixed in a…

A: The objective of the question is to calculate the change in enthalpy for the given reaction.It is…

Q: The specific heat of water is 4.18 J/g⋅∘CJ/g⋅∘C. Calculate the molar heat capacity of water. Express…

A: Specific Heat capacity: The amount of heat required to increase the temperature of one gram of a…

Q: find the value of Δ? in degrees Celsius.

A: Given : ∆T = 312°F

Q: You are given the following data: H₂(g) 2 H (g) Br₂(g) → 2 Br (g) H₂(g) + Br₂(g) 1 2 HBr (g) kJ mol…

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Q: 1. Fill in the boxes below with the correct reagent, reactant or product ( (a) OH (b) 1. (CH;),CHMGB…

A: Since, you have asking to solved multi subparts questions so I will solved first three subparts for…

Q: When 130. mL of 0.198 M NaCl(aq) and 130. mL of 0.198 M AgNO3(aq), both at 21.8°C, are mixed in a…

A: When the system release energy then the process is known as exothermic. When the system absorbs…

Q: If the following three thermochemical equations are added together, what is the resulting equation:…

A: Given equations: 2XO2 (g) +2CO (g) → 2 XO (g) + 2 CO2 (g)               ----12 XO (g) + 2/3 CO2(g)→…

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.