Given the thermochemical equation below, determine the amount of heat transferred when 17.5 g of magnesium reacts with oxygen at constant pressure

Q: One mole ammonium nitrate dissolves in water to produce aqueous ammonium ions and nitrate ions,…

A: Thermochemical equation of one mole of ammonium nitrate dissolves in water to be determined.

Q: 2.14  grams of a mystery substance of food with a molar mass of  167.85  g/mol is burned in a bomb…

A: First we have to fine moles of the food substance, then divide this mole to amount of energy (in kJ)…

Q: Most ethylene (C2H4), the starting material for producing polyethylene, comes from petroleum…

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Q: , how many grams of aluminum can form when 1000 kJ of heat is transferred?

A: Given:  ΔH = 1676 kJ/mol To find what does 1000 kJ of heat will be produced

Q: Sulfur dioxide gas reacts with oxygen to form sulfur trioxide in an exothermic reaction according…

A: Enthalpy of a reaction is the energy that liberated or consumed in the chemical reaction. For an…

Q: Magnesium burns in air to produce a bright light and is often used in fireworks displays. The…

A: Given :-  2Mg(s) +O2(g) 2MgO(s)    ; ∆Ho = -1203 kJ  mass of Mg burns = 6.82 g  To calculate :-…

Q: A calorimeter is used to measure the heat absorbed or released in a chemical .1 or physical process…

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Q: An automobile engine provides 561 Joules of work to push the pistons. In this process the internal…

A: To solve this question, use the formula which contains q, ∆U, and w in it. Give the signs to the…

Q: Sucrose (C₁₂H₂₂O₁₁, table sugar) is oxidized in the body by O₂ via a complex set of reactions that…

A: Given: The oxidation of sucrose (C12H22O11) in the body using O2 through a complex set of reactions,…

Q: A propellant for rockets is obtained by mixing the liquids hydrazine, N2H4, and dinitrogen…

A: In the given question we have write the chemical equation of the following Reaction occur when 1 mol…

Q: An automobile engine provides 556 Joules of work to push the pistons. In this process the internal…

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Q: Match each of the following with its correct answer In the following thermochemical equation:…

A: Since you have posted multiple question will solve the first question for you to get the remaining…

Q: Rewrite the equation as thermochemical equations in two different ways to include the heat…

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Q: An automobile engine provides 621 Joules of work to push the pistons. In this process the internal…

A: According to the first law of thermodynamics, the following expression is obtained: ∆U=q+w…

Q: How much heat will be absorbed when 38.2 g of bromine reacts with excess hydrogen according  to the…

A: Given :-  H2 + Br2  + 72.80 kJ → 2HBr  To calculate :-  Amount of heat absorbed when 38.2 g of…

Q: Based on the balanced thermochemical equation: 4 NO + 6 H2O → 4 NH3 + 5 O2   ΔH = +(8.880x10^2) kJ…

A: Given, 4 NO + 6 H2O → 4 NH3 + 5 O2   ΔH = +(8.880x102) kJ mass (in grams) of H2O are required to…

Q: A 45-g aluminum spoon (specific heat 0.88 J/g °C) at 24 °C is placed in 180 mL (180 g) of coffee at…

A: Use calorimetry principle to get answer Heat flow from high temperature to low temperature. Heat=…

Q: When 1 mol of KBr(s) decomposes to its elements, 394 kJ of heat is absorbed. (a) Write a balanced…

A: The thermochemical equation is that which explains the chemical reaction in terms of enthalpy…

Q: Heat energy of 566.0 kJ is absorbed when 2 mol carbon dioxide decomposes to carbon monoxide and…

A: When heat is released in the reaction, it is an exothermic reaction whereas if the heat is absorbed,…

Q: A 15.7 g aluminum block is warmed to 53.2 deg C and plunged into an insulated beaker containing 32.5…

A: Given that,Mass of Aluminium is 15.7 gMass of water is 32.5 gInitial temperature of Aluminium is…

Q: 5. Given the thermochemical equation, for octane, a major component of gasoline, burns according to…

A: Thermochemical equation is a balanced chemical equation in which the physical states of each…

Q: Which of the following makes sense: When volume of a system is under constant pressure, which of…

A: The enthalpy change is defined as the internal energy change plus product of constant pressure and…

Q: An automobile engine provides 628 Joules of work to push the pistons. In this process the internal…

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Q: An automobile engine provides 628 Joules of work to push the pistons. In this process the internal…

A: According to first law of thermodynamics , energy can neither be created nor destroyed it can change…

Q: Given the equation 2SO2(g) + O2 (g) = 2SO3(g), H° = –197.8 kJ per mole, find the quantity of heat…

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Q: A 120 gram sample of gold absorbs absorbs 1.2 kJ of heat. How many much does the temperature of the…

A: Given: Mass of the sample= 120 g Heat absorbed= 1.2 kJ Specific heat capacity of gold= 0.129 To…

Q: Consider the following thermochemical reaction for kerosene: 2 C12H26 (1) + 37 O2 (g) 24 CO2 (g) +…

A: The given balanced chemical equation is: 2 C12H26 (l) + 37 O2 (g)→ 24 CO2 (g) + 26 H2O (l)…

Q: A small piece of metal is heated and placed in a foam cup calorimeter containing 50.0 mL of water at…

A: q= mc∆t Q= 522.2joule

Q: An automobile engine provides 565 Joules of work to push the pistons. In this process the internal…

A: In this question, we want to determine the amount of heat that must be carried away by the cooling…

Q: What is the thermochemical equation for the formation of 1 mole of gaseous hydrogen iodide

A: Heat of formation, also called standard heat of formation, enthalpy of formation, or standard…

Q: the heat released for a complete reaction of 1 mole of carbon to 1 mole of carbon dioxide is 393kj.…

A: Given,  Given moles of carbon = 1 mole  Moles of CO2 = 1 mole  Amount of heat releases = 393 KJ…

Q: Limestone, CaCO3, when subjected to a temperature of 900 C in a kiln, decomposes to calcium oxide…

A: Answer:

Q: If a system absorbs heat from its surrounding, the thermochemical process is described as being __.…

A: There are two types of processes defined based on the heat transfer  1) Exothermic  2) Endothermic

Q: How much heat will be absorbed when 13.7 g of nitrogen reacts with excess O2 according to the…

A: The reaction given is, => N2 + O2 → 2 NO                        ∆H = +180 KJ. Given: Mass of N2…

Q: When 2.39 g ammonia gas is oxidized over a smooth platinum catalyst to form nitrogen monoxide gas…

A: The reaction for the process is given below : NH3  +  O2  →Pt  NO  +  H2O               ∆H=41.1kJ We…

Q: An automobile engine provides 624 Joules of work to push the pistons. In this process the internal…

A: Calculate heat q for the engine ?

Q: An automobile engine provides 623 Joules of work to push the pistons. In this process the internal…

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

Q: Write the thermochemical equation for: a. Heat energy of 849.0 kJ is absorbed when 2 mol carbon…

A: Thermodynamics is the branch of chemistry that mainly deals with the heat transfer between system…

Q: Consider the following thermochemical equation: 2 NO, 2NO, AH = -114.1 kJ 02(g) (g) 2(9) Choose...…

A: 2NOg    +     O2g       →      2NO2g ∆H = -114.1kJ Molar mass of NO2 = 46gmol

Q: Decomposition of mercury oxide, HgO, to mercury and oxygen gas, requires 87.1 kJ of heat. What is…

A: The thermochemical reaction is a balanced chemical reaction involving the energy absorbed or…

Q: Which of the following is NOT true about Hess's Law? A. If an equation is reversed, the sign of…

A: The Hess's law the total enthalpy change of a complete chemical reaction is the same regardless of…

Q: The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 110 J of…

A: Given that : Heat absorbed by the balloon = 110 J Work done by the balloon = 79 kJ We have to…

Q: An automobile engine provides 570 Joules of work to push the pistons. In this process the internal…

A: The relationship between the q and internal energy change and work is given by  ΔE = q + w where ΔE…

Q: What is the thermochemical equation. Formation of carbon dioxide gas from carbon (graphite) and…

A: The balanced chemical equation with the description of physical states and the amount of energy…

Q: When 2 mol of potassium chlorate crystals decompose to potassium chloride crystals and oxygen gas at…

A: A thermochemical equation for a given reaction can be defined as the balanced stoichiometric…

Q: How much heat will be transferred when 14.9 g of ammonia reacts with excess oxygen according to the…

A:

Q: An automobile engine provides 572 Joules of work to push the pistons. In this process the internal…

A:

Q: Heat energy of 566.0 kJ is absorbed when 2 mol carbon dioxide decomposes to carbon monoxide and…

A: A chemical equation represents the chemical change taking place in the reaction. The reactants…

Q: Determine the enthalpy of the reaction in which sulfur dioxide is oxidized to sulfur trioxide using…

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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.