How many moles of H2 are required to produce -2501 kJ of heat in the following reaction? N2 (g) + 3 H2 (g) → 2 NH3 (g) AH° = -91.8 kJ/mol

Q: 2C2H6 (g) + 7O2 (g) → 4CO2(g) + 6H2O (g) ΔH = -1560 kJ How much heat (in kJ) is released if 11.1 g…

A: Moles of ethane=11.1/30=0.37

Q: How much heat is produced by the complete combustion of 264 gg of CH4CH4?

A: Given:CH4g+2O2g→CO2g+2 H2Og∆Hrxn°=-802.3 kJ

Q: The complete combustion of a small wooden match produces approximately 512 cal of heat. How many…

A: Given, The approximate amount of heat produced by the combustion of a small wooden match = 512 cal…

Q: The reaction 3H2(g) + N2(g) → 2NH3(g) has an enthalpy of reaction of -92.6 kJ/mol. If 2 g of…

A: According to the given balanced chemical equation, one mole of nitrogen reacts to produce 92.6 kJ of…

Q: How many grams of C,H, liquid must decompose according to the following chemical equation to…

A: Given :-  C6H6(l) ---> 3C2H2(g)  ΔH = 630 kJ To calculate :-  Amount of C6H6 that will be…

Q: How much heat is release when a mixture containing 10.0g NH3 and 20.0g O2 reacts by the following…

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Q: solve the attached

A: First, calculate the number of moles of N2: No of moles = Mass/Molar mass = 68.0g/(28.0gmol-1) =…

Q: How many grams of C6H6 must decompose according to the chemical equation to transfer heat 430 J of…

A: The decomposition reaction is, 1 mole of reactant is decomposing and transfers 630Kj of heat or (63…

Q: An ideal gas in a cylinder fitted with a piston expands at constant temperature from a pressure of 9…

A: Given data : Temperature (T) = Constant Pressure (P) = 9 atm Volume(V) = 7.0 L to 17 LConsatnt…

Q: Propane, C3H8(g), is used in many instances to produce heat by burning: C3H8(g) + 5O2(g) → 3CO2(g)…

A: Given :-  C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(l)      ΔH = -2220. kJ  To calculate :-  Mass of O2…

Q: How many moles of H₂ are required to produce -2051 kJ of heat in the following reaction? N₂ (g) + 3…

A: Heat of reaction is difference of energy of product  and energy of Reactant. If heat of reaction is…

Q: In the following reaction, what is the quantity of heat (in kJ) released when 6.49 moles of CH, are…

A: Given reaction: CH₄ (g) + 2 O₂ (g) → CO₂ (g) + 2 H₂O(g) Given, ∆H° = -802 kJ/mol We have to…

Q: How much heat will be released (AH) if 0.5263 mol of NH3 are mixed with O.20 mol of O2 in the…

A: Interpretation: The amount of heat released in the following reaction is to be determined. Reaction:…

Q: 4. What is the specific heat of iron, if it requires 1050 J of heat energy to raise the temperature…

A: Heat required = 1050 J Initial temperature = 10.0°C Final temperature= 20.4°C Change in temperature…

Q: From the given chemical equation, solve for the heat evolved (in k]) when 78.96 g of carbon dioxide…

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Q: Consider the following reaction: 2 Al (s) + Fe2O3 (s) → 2 Fe (s) + Al2O3 (s)    ΔH = -850 kJ What…

A: Given the chemical reaction as follows,2 Al (s) + Fe2O3 (s) → 2 Fe (s) + Al2O3 (s)   ;  ΔH = -850…

Q: The reaction for the combustion of propane is…

A: In the given question, a reaction is given in which we have to determine the amount of heat released…

Q: What mass (in grams) of Si(s) must react with excess F2 to produce 2,509 kJ of heat given the…

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Q: 1. What quantity of heat (in kJ) will be released (∆H) if 0.4501 mol of NH₃ are mixed with 0.200 mol…

A: Ammonia reacts with oxygen to form hydrazine and water. The equation for the balanced chemical…

Q: Hydrogen sulfide, H2S, is produced during decomposition of organic matter. When 0.6850 mol H2S burns…

A:

Q: How much heat, in kilojoules, is released when 12.4  g   H2(g)  reacts with plenty of  O2(g)  to…

A: Given thermochemical equation is  2 H2 (g)  + O2 (g)   -->  2 H2O (g)…

Q: How many moles of H2 are required to produce -2151 kJ of heat in the following reaction? N2 (g) + 3…

A: The balanced reaction taking place is given as, =>

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: How many joules of heat must be removed from 432g of water. (heat capacity of 4.184j / g celsuis) to…

A: Joules of heat can be calculated by using following formula,The equation for heat is  Q=m(Δt)Cp

Q: What quantity of heat (in kJ) will be released if 0.3387 mol of NH3 are mixed with 0.200 mol of O₂…

A: The limiting reagent in a chemical reaction is a reactant that is totally consumed when the chemical…

Q: How much heat will be released (AH) if 0.5263 mol of NH3 are mixed with 0.20 mol of O, in the…

A: Balanced equation: 4NH3 (g) + O2 (g) --------->  2N2H4 (g)  +  2H2O (g)    ∆H° = -286 kJ/mol This…

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: 200 grams

A: A) moles of NH3 = 200g / 17gmol-1 = 11.765mol  B) moles of O2 = 450g / 32gmol-1 = 14.063mol

Q: How many moles of H, are required to produce -4551 kJ of heat in the following reaction? N, (g) + 3…

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Q: How many moles of KClO₃solid must be reacted according tothe following balanced chemical reaction to…

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Q: A propane BBQ combusts propane as shown below: C3H8 (g) + 5 O2 (g) → 3 CO2 (g) + 4 H2O (0 A,H =…

A:

Q: Consider the reaction B2H6(g) + 3 O2(g) → B2O3(s) + 3 H2O(g) ∆H = -2035 kJ How much heat is…

A: Using the concept of limiting reagent, we can easily find the number of moles of the reaction that…

Q: What mass of natural gas (CH,) must burn to emit 263 kJ of heat? CH4 (9) + 202 (9) → CO2 (g) +…

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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: How much heat is required to raise the temperature of 854 g of H2O from 23.5 °C to 85.0 °C?

A: 4.  Given :  Mass of H2O = 854 g  Initial temperature = 23.5 °C  Final temperature = 85.0 °C  To…

Q: The reaction between sodium metal and chlorine gas produces 822 kJ of heat energy for every chlorine…

A: The number of moles of any substance can be obtained by dividing the mass by molar mass which may be…

Q: In the following reaction, how many moles of CH3OH are required to give off 5576 kJ of heat? 2 CH;OH…

A: To determine Moles of CH3OH required to give off heat 5576 KJ

Q: How many kilojoules of heat are produced when 34.0 g of Fe2O3 reacts with an excess of CO according…

A: In this question, we want to determine the value of heat produced in kJ unit. How we can determine,…

Q: Please help me, double and triple check your answers previous tutors got it wrong,

A: Given data, 1 mole propane burned to obtained 350kJ of heat

Q: In the following reaction, how many moles of CH3OH are required to give off 1876 kJ of heat? 2 CH3OH…

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Q: How much heat (in kJ) will be released (AH) if 0.4501 mol of NH3 are mixed with 0.200 mol of O, in…

A: Applying concept of limiting reagent and heat released.

Q: | How much heat is evolved when 320g of S0z is burned according to the chemical reacthon below? 2502…

A: Given Reaction:  2 SO2 +O2 ----------> 2SO3  Amount of SO2 =320 g  To Calclutae: Heat evolved…

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: What is the mass of a copper sample (specific heat = 0.384 J/gºC) if addition of 30.0 J of heat…

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Q: How many moles of H2 are required to give off 2501 kJ of heat in the following reaction? N2 (g) + 3…

A: Heat given in reaction = -91.8 KJ/mol Moles of H2 in reaction = 3  Heat = 2501 KJ Moles of H2 = ?

Q: In the following reaction, how many moles of CH,0H are required to give off 3791 kJ of heat? 2 CH,OH…

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Q: When 1 mol of a fuel burns at constant pressure, it produces3452 kJ of heat and does 11 kJ of work.…

A: Given, When 1 mol of a fuel burns at constant pressure, it produces 3452 kJ of heat and does 11 kJ…

Q: When 0.5 mol of H2 is reacted with 0.5 mol of O2, 121 kJ of heat is released. Determine ΔHrxn for…

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Q: How much heat is evolved when 8.89x10° g of ammonia is produced according to the following equation?…

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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.