Given:  (a) BCl3 + 3H2O →H3BO3 + 3HCl                    ∆H =-112.5kJ   (b) B2H6 + 6H2O →2H3BO3 + 6H2                   ∆H = -493.4 kJ (c ) ½ H2 + ½ Cl2 → HCl                                   ∆H = -92.3 kJ Calculate the value of ∆H for the reaction: B2H6 + 6Cl2 → 2BCl3 + 6HCl

Q: Consider the decomposition of methane CH4 (g) = C(s) + 2H2 (g) Given that ∆fH0 (CH4,g) = -74.85 kJ…

A: Since you have asked a question with multiple sub-parts, we will solve first three sub-parts for…

Q: For each of the following processes, indicate whether the signs of ∆S and ∆H are expected to be…

A: The enthalpy change ∆H is related to the flow of energy in the form of heat. Thus, if heat flows out…

Q: Calculate the ∆Hof of C6H12O6(s) from the following data:  ∆H combustion of C6H12O6(s) =…

A:

Q: 3Cu2+(aq)+2Fe(s)↽−−⇀3Cu(s)+2Fe3+(aq) ΔrH∘=−288kJ/mol What is the value of ΔrG?

A: 3Cu+2 (aq)+2Fe(s)↽−−⇀3Cu(s)+2Fe+3 (aq) ΔHorxn =−288kJ/mol

Q: Why is it often more convenient to measure ∆H than ∆E?

A: ∆H is equal to heat change at constant pressure and ∆E is equal to heat change at constant volume.…

Q: Find the heat of reaction and explain what happen to it. Calculate the ∆H of reaction for: C3H8 (g)…

A: Solution - C3H8 (g) + 5O2 (g) →→ 3CO2 (g) + 4H2O (l)      ∆H∘rxn =∑∆H°f,products-∑∆H°f,reactants…

Q: A reaction of decomposition of a compound AB is  accompanied by absorption of some heat energy. What…

A:

Q: Find the heat of reaction and explain what happen to it. Calculate the ∆H of reaction for: C3H8 (g)…

A: C3H8 (g) + 5O2 (g) → 3CO2 (g) + 4H2O (l)      ∆Hrxn° = ∑∆H°f,products-∑∆H°f,reactants   ∆Hrxn° = 3 x…

Q: Consider the following balanced thermochemical equation for the decomposition of the mineral…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: Using the following reactions: 2 H 2 (g) + O 2 (g) --> 2 H 2O (g) ∆H = –484 kJ x 2…

A:

Q: Calculate q, w, ∆H and ∆U for the process during which 2 mol Ar is heated at a constant pressure of…

A: As pressure is constant, the process is called isobaric. Let us apply its formulas to solve the…

Q: Given :           (1) 2NF3 + 2NO  → N2F4  + 2ONF     ∆H= -82.9 kJ           (2) NO + ½ F2  → ONF…

A:

Q: Which of the following processes would you predict to have the most favorable ΔSº?     CH3OH(g)  →…

A: Entropy  It is defined as the randomness present in the system. If the randomness is more then…

Q: Find the ∆H for the reaction below, given the following reactions and subsequent ∆H values: H2SO4…

A: The given equations are:  H2Sg + 2O2g → H2SO4l                  ∆H = -235.5 kJ  ……1 H2Sg + 2O2g →…

Q: Using the equations N₂ (g) + 3 H₂ (g) → 2 NH₃ (g) ∆H° = -91.8 kJ/mol C(s) + 2 H₂ (g) → CH₄ (g) ∆H° =…

A: Answer:- This question is answered by using the simple concept of Hess Law of constant heat…

Q: Find the ∆H for the reaction below, given the following reactions and subsequent ∆H values: H2SO4…

A: Thermodynamics is branch of chemistry in which we deal with amount of heat absorbed or evolved…

Q: What is the correct statement about the reaction? (At 298K, ∆H°f for CF4(g) is –933 kJ) ½…

A:

Q: Calculate the ∆H for the reaction  NO(g)   + O(g)   →   NO2(g) given the following information…

A: Given : Consider,  1) NO(g) + O3(g) → NO2(g) + O2(g)             ∆H1 = - 198.9 kJ 2) O3(g) → 3/2…

Q: (

A:

Q: The accompanying diagram shows how ∆H (red line) and T∆S (blue line) change with temperature for a…

A: The significance of the point at 300 K, where ∆H and T∆S are equal

Q: Consider the following equation: 2 CH3OH (ℓ) + 3 O2 (g) à  4 H2O (ℓ) + 2 CO2 (g)         ∆H =…

A: The heat of reaction is a thermodynamic unit of measurement. It is the amount of energy either…

Q: A certain reaction has ∆H ° = +23.7 kJ and ∆S° = +52.4 J>K. (a) Is the reaction exothermic or…

A: ∆H ° = +23.7kJ If for any chemical reaction ∆H ° is positive, the reaction will be endothermic…

Q: Calculate q, AH and AU for the process during which 2 mol NO2 is heated at a constant pressure of 1…

A:

Q: Please use the following reactions and ∆H values to calculate the theoretical ∆Hsoln for NaCl.…

A:

Q: Calculate ∆H for the reaction 4 NH3 (g) + 5 O2 (g) → 4 NO (g) + 6 H2O (g), from the following data.…

A:

Q: 4 NH3 (g)   +   5 O2 (g)      4 NO (g)   +   6 H2O (g)                       ∆H  =  -905 J   What…

A: If Equation is multiplied by 3 the Change in energy will also be three times.

Q: (a) Use the data given below and calculate ∆Ho, ∆So, ∆Go, and Kp at 25° C for the reaction: 2 COCl2…

A:

Q: Standard molar entropies for CO(g), CO2(g), and O2(g) are 197.9, 214.0, and 205.0 in J/mol K,…

A: Entropy Entropy is the measure of disorder in a reaction. When an amount of energy is added to a…

Q: For ionization energy, when is it more unfavorable? How does this relate to the ∆H ?

A: Unfavourable ionization energy means greater amount of energy requirements.  This is possible due to…

Q: lculate ∆H for the reaction 4NH3 (g) + 5O2 (g) → 4NO (g) + 6H2O (g), from the following data. 1. N2…

A: In a chemical reaction, some bonds are formed and some are broken.This results into change in the…

Q: Draw a (hess diagram) enthalpy diagram to calculate the ∆Hfc2 H5 OH using the following date ∆Hcc =…

A: Hess's law is an important rule in thermodynamics. It states that the heat absorbed by or escaped…

Q: Given that the ∆H for the following reaction below is -534 kJ, determine the ∆Hfo for N2H4(l)…

A: The balanced chemical reaction is, N2H4l+O2g→2H2Og+N2g......(1) The enthalpy of the above reaction…

Q: O(g) + e–(g) --> O–(g)    ∆Hº = –142 kJ mol–1 O(g) + 2 e–(g) --> O 2– (g) ∆Hº = +702 kJ mol–1…

A: From the given equations, it is clear equation (3) can be obtained by adding the reverse of equation…

Q: At 600.0 K, ∆Gº=–31.7 kJ/mol for the following decomposition reaction 2NH3(g) → N2(g) + 3H2(g). What…

A: Since form the balanced reaction 2NH3(g) → N2(g) + 3H2(g)  we can say that 2 moles of NH3 is…

Q: For a certain chemical reaction, ∆H° = -35.4 kJ and ∆S° = -85.5 J>K. (a) Is the reaction…

A: The heat given off or absorbed in a chemical reaction is known as heat of the reaction. On the basis…

Q: Given: 2C(s) + O₂(g) → 2CO(g) ∆H = -218 kJ C(s) + O₂(g) → CO₂(g) ∆H = -393 kJ How much energy is…

A: The given reactions are: 2C(s) + O₂(g) → 2CO(g)           ∆H = -218 kJ  C(s) + O₂(g) → CO₂(g)…

Q: Using Table 8.3, estimate ΔH for the following gas-phasereactions:

A: Hess's law of constant heat summation: The enthalpy change is constant either the reaction is taking…

Q: For the reaction   N2(g) + 3 H2(g) → 2 NH3(g)   ∆Grxn = –33 kJ mol-1 when all gases have a…

A: The reaction :  N2(g) + 3 H2(g) ==> 2 NH3 (g)  ∆Grxn= -33 KJ/mol

Q: A sample of liquid acetone weighing 0.700 g was burned in a bomb calorimeter for which the heat…

A: Enthalpy of solution - The   amount of heat evolved or absorbed when 1 mole of the substance  is…