Does the following reaction absorb or release energy? release absorb (1) Ge(g) + e Ge (g) Can't be decided with the data given. Is it possible to calculate the amount of energy absorbed or released by reaction (1) using only the data above? yes no If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (1): |kJ/mol Does the following reaction absorb or release energy? release absorb (2) Ge (g) Ge (g) + e Can't be decided with the data given. Is it possible to calculate the amount of energy absorbed or released by reaction (2) using only the data above? yes no If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (2): | kJ/mol ? O O O o oo O

Q: mass of empty calorimeter (g) 22.39 mass of hot water (g) 119.4 initial temp (Celsius) 64.43 mass…

A: When ice would be placed in hot water , hot water would release heat and ice would gain heat . At…

Q: Sucrose, C12H2011 is oxidized in the body by O2 via a complex set of reactions that ultimately…

A: Given Energy released per mole of sucrose = -5.64 × 103 kJ/mol

Q: How much energy (in kJ) is released when 0.750 moles of NaOH react in excess HCl?

A:

Q: The decomposition of NI3NI3 to form N2 and I2 releases −290.0 kJ of energy. The reaction can be…

A: The objective of the question is to find the change in enthalpy when 12.0 g of NI3 decomposes. The…

Q: Consider the reaction: CH,OHØ) + 30, )→200,(e) + 3H,O), AH=-1.37 x 10' k When a 21.1-g sample of…

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Q: Zinc metal reacts with HCl according to the balanced equation: Zn + 2HCl à ZnCl2 + H2 When 0.103 g…

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Q: If you have 6.0 moles of ammonia, how much energy in kJ released in the chemical reaction? N2 (g) +…

A: Answer is A) -280 kJ

Q: When 1 mol of methane is burned at constant pressure, -890 kJ/mol of energy is released as eat. If a…

A: Mole is equal to weight of substance divide by it's molar mass

Q: Given: H2(g) + Br2(1) → 2 HBr(g) AHx= -72.8 kJ Calculate the amount of energy absorbed or released…

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Q: In the following experiment, a coffee-cup calorimeter containing 100 mL of H2 0 is used. The initial…

A:

Q: combustion of octane (in gasoline) occurs according to the reaction 2 CgH₁8 + 25 0₂ 16 CO₂ +18 H₂O.…

A: Given-> ∆Hf(octane) = -268.8 KJ/mole ∆Hf(CO2) = -394KJ/mole ∆Hf(H2O) = -286 KJ/mole

Q: In the following reaction, how much heat (in kJ) is released when 2.49 moles of CH4 are burned? CH4…

A: given, CH4(g) + 2O2(g) → CO2 (g) + 2 H2O(g) △H= -802 kJ/mol one mole of methane gives 802 kJ of…

Q: Reaction 2.   How much energy (in kJ) is released when 49.0 g of oxygen difluoride decomposes?…

A: Decomposition of oxygen difluoride  2OF2(g) -----> O2(g) + 2F2(g).  ∆H = -49.4 kJ

Q: Complete the Table based on the picture (Dissolution of Ammonium Nitrate) Mass of Water = 200g…

A: The experiment deals with the dissolution of ammonium nitrate in water.

Q: Consider the following data for aluminum: atomic mass 26.982 mol electronegativity 1.61 kJ 42.5 mol…

A: Two questions based on periodic properties, which is to be accomplished.

Q: C3H8(g)+50₂(g) → 3 CO₂(g) + 4H₂O(1) Use the information to answer the following questions. This…

A: mass of C3 =

Q: A chemist measures the energy change AH during the following reaction: 2 NH3(g) – N,(g)+3H,(g)…

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Q: NOx compounds can be formed in the atmosphere via the reaction of NO and ozone. Using the data…

A: Endothermic reaction - it is a process which absorbs heat from surrounding. Exothermic reaction - it…

Q: 17-When 2.00 grams of methane is burned in the calorimeter bomb, the calorimeter temperature rises…

A: The combustion of methane is as follows: CH4(g)+2O2(g) → CO2(g)+2H2O(l)

Q: Silane, SiH, burns according to the equation SİH4 + 20₂ SiO₂ + 2H₂O AH°= -1429 kJ. How much energy…

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Q: When H₂ and O2 react to form H₂O, heat is released to the surroundings. Consider the reverse…

A: Exothermic reaction and endothermic reaction: Exothermic reaction: Exothermic reactions are reaction…

Q: Ea,rev for the reaction is 65 kJ, while AH is -36 kJ. What is Ea,fwd (in kJ)?

A: ∆H = Ea,fwd - Ea,rev Ea,fwd = activation energy of forward reactionEa,rev = activation energy of…

Q: A+B C Reaction 1 gives product C. A+B D Reaction 2 gives product D. The following facts are known…

A: Endothermic implies energy is absorbed and exothermic implies energy is released. Here, it is…

Q: 13. Hydrochloric acid neutralizes sodium hydroxide, forming sodium chloride and water. NaOH (aq) +…

A: Enthalpy of neutralization defined as the heat released when one mole of acid reacts with one mole…

Q: A 5.71 g sample of an unknown salt (MM 116.82 g/mol) is dissolved in 150.00 g water in a coffee cup…

A:

Q: A chemist measures the energy change AH during the following reaction: C₂H₂(g) +50₂(g) → 3 CO₂(g) +…

A: When energy is released during a reaction, it is said to be exothermic reaction.And when energy is…

Q: 8. Hydrazine, N₂H4, is a rocket fuel. Calculate the AH°rn when 1 mole of hydrazine is combusted…

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Q: Heating BaCO3 leads to decomposition: BaCO3 (s) → BaO (s) + CO2 (g) AH = 15.7 kJ/mol a) If the…

A: this is  an endothermic reaction , according to Le-chateliers principle , when the reaction is…

Q: Does the following reaction absorb or release energy? release absorb (1) Se (g) + e Se (g) Can't be…

A: As the electron is released from a gaseous atom of selenium, It absorbs energy. Yes, the Amount of…

Q: art B he molar heat capacity of silver is 25.35 J/mol · °C. How much energy would it take to raise…

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Q: At constant volume, the heat of combustion of a particular compound is -3863 kJ/mol. When 1.163 g of…

A: Heat capacity is the amount of heat required to raise the temperature of a substance by 1 degree…

Q: A concentration cell is composed of two Co electrodes and solutions of different Co2+…

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Q: de (NaCl). The AHºd graph dd a File ous Page diss is +3.84 kJ/mol. BI UV A/ Record Audio Next Page…

A: Thermochemical reaction is equation which gives information about physical states of reactants and…

Q: 11) When potassium chloride reacts with oxygen under the right conditions, potassium chlorate is…

A: Since you are posted with multiple questions. As per the rule I am answering first question only.…

Q: A chemist measures the energy change AH during the following reaction: C₂Hg(g)+50₂(g) → 3 CO₂(g) +…

A: Exothermic reaction : ΔH = -ve or heat energy is released. Endothermic reaction: ΔH = +ve or heat…

Q: A chemist measures the energy change AH during the following reaction: C3H₂(g) +50₂(g) → 3 CO₂(g) +…

A: Exothermic reaction and endothermic reaction:Exothermic reaction : Exothermic reactions are reaction…

Q: 3. To the cooled anhydrate, CuSO4, of Part I, a student added about 5 mL of distilled water and then…

A: we are discuss whether the rehydration of copper(II) sulphate exothermic or exothermic process.

Q: A chemist measures the energy change AH during the following reaction: Cl,(9)+H,(g) → 2 HC(g)…

A: Answer given as follows

Q: If 2.00 g of MgSO4 (MW = 120.4 g/mol) is dissolved into 25.0 grams of 22.5 °C water, then what will…

A: Given - Mass of MgSO4 = 2.00 g             Molar mass of MgSO4 = 120.4 g/mol             Mass of…

Q: A chemist accidentally leaves a 300.0 g sample of benzene on an activated hotplate. The benzene…

A: Detail mathematical calculation is shown below

Q: How much energy is evolved during the formation of 180g of Fe, according to the reaction below?…

A: Given Reaction :-  Fe2O3(s) + 2Al(s) ------> Al2O3(s) + 2Fe(s) ∆H° = -852 kJ

Q: A chemist measures the energy change AH during the following reaction: 2 NO,(9) → N,O4(9) AH=-55.3…

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Q: The reaction between iron(III) oxide and aluminum, to produce aluminum oxide and iron, has a heat of…

A: The reactants given are Iron (III) oxide i.e Fe2O3 and Aluminium i.e Al and the products given are…

Q: 3. Calcium sulfate is a byproduct of some types of oil extraction. Some companies process the…

A: Mass of CaSO4 = 36 Kg = 36000 gmMolar mass of CaSO4 = 136 g/mol

Q: How much energy is required to decompose 765 g of PCI3, according to the reaction below? The molar…

A: 4PCl3(g) ----> P4(s) + 6Cl2(g)     ∆H°rxn = +1207 kJ mass of PCl3 decompose = 765 g molar mass of…

Q: The combustion of hexane is given by the following reaction. 2 C6H14 + 19 O2  12 CO2 + 14 H2O The…

A: Combustion :- When a substance is burnt in excess of air or in oxygen then the process is called…

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.