Given that AH; H(g)] = 218.0 kJ-mol- %3D AH; C(g)] = 716.7 kJ-mol¬1 %3D AH; (CH,(g)] = -74.6 kJ•mol¬! %3D calculate the average molar bond enthalpy of the carbon–hydrogen bond in a CH, molecule.

Q: Using the equations 2 CH, (1) + 15 0, (g) → 12 CO, (g) + 6 H,O (g)AH° = -6271 kJ/mol C (s) + O, (g)…

A: Above question will be solved by suing the Hess Law.

Q: The molar heat capacity at constant pressure for CO(g) is 6.97 cal mol-1 K-1. How much heat in cal…

A: Data given: The molar heat capacity at constant pressure for CO(g), cp = 6.97 cal mol-1 K-1 Mass of…

Q: Using the equations H, (g) + F, (g) → 2 HF (g) AH° = -79.2 kJ/mol C (s) + 2 F, (g) → CF, (g) AH° =…

A:

Q: The molar heat capacity at constant pressure for CO(g) is 6.97 cal mol-1 K-1. How much heat in cal…

A: The molar heat capacity is defined as the heat (Q) required to raise the temperature of 1 mole the…

Q: Does the law of conservation of energy relate to energy exchanges between a thermodynamic system and…

A: For an isolated system, its total energy remains constant. The energy of system will change if it…

Q: Calculate the standard enthalpy change for the reaction: 2C3H18(1) + 1702(g) ® 16CO(g) + 18H,O(1)…

A: When a thermochemical equation is reversed then its ∆H value chages its sign. When a thermochemical…

Q: Given that: ΔHof [NO2(g)] = +34.0 kJ mol−1 ΔHof [NO(g)] = +90.0 kJ mol−1 What is the standard…

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Q: Given the thermochemical equations X, + 3 Y, → 2XY3 AH1 = -340 kJ X, + 2Z, 2 XZ2 AH2 = -170 kJ 2 Y,…

A:

Q: Using the equations N, (g) + 3 H, (g) → 2 NH, (g) AH° = -91.8 kJ/mol C(s) + 2 H, (g) – CH, (g) AH° =…

A:

Q: The molar heat capacity at constant pressure for CO(g) is 6.97 cal mol-1 K-1. How much heat in cal…

A: Here  Molar mass of CO  12.011g/mol + 15.999g/mol = 28.01g/mol  Given mass of CO = 0.59 g  Now…

Q: A 33e1289 sample F an unknown metal is heated to 10001°C in e hot waterc bath untill thermar…

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Q: (1) 4C(s) + 5H2(g)–C„H,,(g) AH° = -125.6 kJ %3D (2) C2H2(g)2C(s) + H,(g) AH° = -226.7 kJ what is the…

A:

Q: um with the coffee ter at 62.7 °C. J qunknown fic heat capacity of aterial? ?] J/g °C

A: Mass = 58.0 g Initial Temperature = 111.0 °c Final Temperature = 62.7 °c Q = -7550 J

Q: Unfortunately I don't get the answer for this one....I've calculated several times already

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Q: Using the equations H2 (g) + F2 (g) → 2 HE (g) AH° = -79.2 kJ/mol C (s) + 2 F2 (g) → CF, (g) AH° =…

A: H2 (g)  +  F2 (g) ----->   2HF (g)  ∆H1° = -79.2 kJ/mol  .................(1) C (s) + 2F2…

Q: Using the equations 2 H, (g) + O, (g)→ 2 H,O (1) AH° = -572 kJ/mol Ca (s) + ½ Ô, (g) → CaO (s) AH° =…

A:

Q: Given the following standard molar enthalpy of formation (DHof):  (D = delta)…

A: Given,  2CH3OH(l) + 3O2(g) --> 2CO2(g) + 4H2O(l)

Q: Using the equations H, (g) + F, (g) → 2 HF (g) AH° = -79.2 kJ/mol C'(s) + 2 F, (g) → CF, (g) AH° =…

A: Given,   Equation1: H2(g) + F2(g) 2HF(g)                          ∆H = -79.2 KJ/mol Equation2: C(s)…

Q: A certain hydrocarbon of the molecular formula C,H2, has a standard enthalpy of formation AH, =…

A: For the combustion reaction, the chemical equation is shown by equation (1) and the value for x is…

Q: 4. Calculate the standard enthalphy change (AH") for the following reaction: H2(g) + I2(g) → 2 HI(g)…

A:

Q: 4 C3H9N(1) + 21 O2(g) → 12 CO2(g) + 18 H2O(1) + 2 N2(1) AH = -9,191 kJ Use this information and the…

A: Standard enthalpy of formation can be calculated as, ∆Horeaction=∆Hproduct-∆Hreactant

Q: Using the equations N, (g) + O, (g)→ 2 NO (g) AH° = 180.6 kJ/mol N, (g) + 3 H, (g) → 2 NH, (g) AH° =…

A: Given equations and their enthalpies are, 1)N2(g)+O2(g)-->2NO(g), ∆Ho1=180.6 KJ/mol…

Q: Using the equations H, (g) + F, (g) → 2 HF (g) AH° = -79.2 kJ/mol C (s) + 2 F, (g) → CF, (g) AH° =…

A: Since you have posted multiple questions we will solve the first question for you. To get the…

Q: ΔrU for C6H12O6 was measured to be -2805 kJ mol-1 in a bomb calorimeter. A 1.752 g sample of this…

A: Given, ∆U for C6H12O6 is -2805 kJ/mol  Sample burned is 1.752 g  Molar mass of C6H12O6 is 180 g/mol…

Q: Using the equations Sro (s) + CO, (g) → SrCO, (s) AH° = -234 kJ/mol 2 Sr(s) + O, (g) → 2 Sro (s) AH°…

A: Given  SrO(s)  +  CO2(g)   →   SrCO3(s)                     ∆H°   = -234 KJ/mol…

Q: In the calorimeter experiment, you mixed 50 mL of 1.0 M NaOH with 50 mL of approximately 1.0 M HCI.…

A: A positive ΔHº value represents an addition of energy from the reaction (and from the surroundings),…

Q: The molar heat capacity at constant pressure for CO(g) is 6.97 cal mol-1 K-1. How much heat in cal…

A:

Q: Using the equations 2 H: (g) + O2 (g) → 2 H2O (1) AH° = -572 kJ/mol Ca (s) + ½ O2 (g) → CaO (s) AH°…

A: The first chemical reaction is, 2H2g+O2g→2H2Ol                 ∆H°=-572 kJ/mol......(1) The second…

Q: Calculate the enthalpy of formation of propan-1-ol, C3H¬OH(I), given the following data. AcH…

A: The question is based on the concept of chemical thermodynamics. we have to calculate enthalpy of…

Q: what is the enthalpy change for the reaction Ba Halg) +30al9) 7 B,03(5) +3H,041) AH=? a.) -239 HJ…

A: The balanced reaction taking place is given as, => B2H6 (g) + 3 O2 (g) ----------> B2O3 (s) +…

Q: A certain hydrocarbon of the molecular formula C,H2, has a standard enthalpy of formation AH =…

A: Complete combustion of alkene produces CO2 and H2O

Q: 16. Given the following set of reaction data, C(s) +O2(g) → CO2(8) → 2CO2(8) AH = -393.5 kJ mol…

A: Given  C(s) + O2(g) --------> CO2(g).   ∆H  = -393.5 kJmol-1  2CO(g) + O2(g) -----> 2CO2(g) ∆H…

Q: The molar heat capacity at constant pressure for CO(g) is 6.97 cal mol-1 K-1. How much heat in cal…

A: heat capacity(C) is defined as the amount of heat required to raise the temperature of substance by…

Q: Calculate the enthalpy of methanol (CH 3OH (l) (MW=32.0 g/mol), if a 2.885 g sample of methanol is…

A: Heat capacity of bomb calorimeter C = 727.1J/0C Change in temperature ∆T = 11.380C mass of methanol…

Q: Using the equations Ca (s) + ½ O2 (g) → CaO (s) AH° = -635 kJ/mol CaO (s) + H2O (1) → Ca(OH)2 (s)…

A: Let Ca (s) + 1/2 O2 (g) → CaO (s)  ΔHo = -635 kJ/mol this be equation 1CaO (s) + H2O (l) → Ca(OH)2…

Q: Given the following set of reaction data, H2(8) +02(8) –H,O(1) 2B(s) +3H2(g) – B,H, (g) 2B(s) +O2(g)…

A:

Q: For a particular isomer of C,H8, the combustion reaction produces 5113.3 kJ of heat per mole of…

A: Given  C8H18 (g) + 25/2 O2 (g) -> 8 CO2 (g) + 9H2O (g) Enthalpy of reaction = -5113.3 KJ mol-1 To…

Q: A 35.6 9 Sample af ethanol ins (2H,OH is B'oamb coori me tad according to the Following reachion if…

A: The question is based on the concept of chemical thermodynamics. we have to calculate enthalpy of…

Q: Use the average bond enthalpies in the table to estimate AH for the combustion of propanc based on…

A: The answer to the following question is-

Q: Using the equations Ca(s) + 1/2 O, (g) → CaO (s) AH° = -450 kJ/mol CO, (g) → C (s) + O, (g) AH° =…

A:

Q: Use the molar bond enthalpy data in the table to estimate the Average molar bond enthalpies. (Hpond)…

A:

Q: Determine the enthalpy for the following reaction, given A (NH3(g)) = -46.1 kJ/mol, AH (NO(g = +90.3…

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Q: A 2.29 g sample of NH¼NO3(s) (MW = 80.04 g/mol) is dissolved in 25 mL of H2O at 23.0 °C in a coffee…

A: Density of water is 1.00 g/mL Mass of water is calculated as follows, Volume=25.0…

Q: At constant volume, the heat of combustion of a particular compou (molar mass = 162.47 g/mol) was…

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Q: Given the thermochemical equations X, + 3 Y, → 2XY; AH| = -370 kJ X, + 2Z, → 2 XZ, AH2 = -180 kJ 2…

A:

Q: atomization

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Q: Given the following chemical equations, Ca(s) + ½O¬(«) → CaO(s) AH = -635 K.Jmol CACO,6,) → CaO,) +…

A: Given that , Ca (s) + 1/2 O2 (g) → CaO (s),△H = -635 kJ mol -1  ⇒ (1) CaCO3 (s) → CaO (s) +CO2(g)…

Q: 3 C2H2(g) – CHolg) What is the standard enthalphy change AH°, for the reaction represented above?…

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Q: A thermodynamic study of DyCl; determined its standard enthalpy of formation from the following…

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Q: The standard enthalpy of combustion of ethene gas, C,H,(g), is -1411.1 kJ/mol at 298 K. Given the…

A:

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.