b) Calculate the enthalpy of formation of copper (II) sulphate from the following data: 2Cu(s) + O2(g) → 2CuO(s) AH° = -325 kJ 2S(s) + 302(g) → 2SO3(g) AH° = -800 kJ %3D CuO(s) + SO3(g) → CUSO4(s) AH° = -220 kJ

Q: 3- Calculate the molar enthalpy change when tungsten is heated by 15 K.

A: From standard sources we get, the molar heat capacity of tungsten is 24.2 J/mol K

Q: How much heat is liberated at constant pressure if 0.833 g of calcium carbonate reacts with 59.7 mL…

A:

Q: The enthalpy of the reaction 2 NO219) → N,Oala) at standard conditions can be determined from the…

A: Formula to calculate ∆Hrxn   ∆H°rxn = ∑n x ∆H°f products - ∑m x ∆H°freactantswere,∆H°f =standard…

Q: Calculate the standard enthalpy for the following reaction at 25°C: C(graphite) + H2O(g) → CO(g) +…

A:

Q: Calculate the standard reaction enthalpy (AH° ) in kJ of the following reaction using the standard…

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

Q: From the following enthalpy changes, calculate the value of AH° for the reaction N21e) + O21g) > 2…

A: If any coefficient is multiplied to the reaction, then that coefficient should also be multiplied…

Q: The standard enthalpy change of combustion of graphite and diamond are −393.5 kJ mol−1 and −395.4 kJ…

A: (a)It is given  Enthalpy of combustion  C(graphite)+ O2  -------> CO2 .....(1)   ∆H=…

Q: 35. What is the amount of heat required to raise the temperature of 200.0 g of aluminum by 10°C?…

A:

Q: Given the following reactions: 2S (s) + 302 (g) 2S03 (g) AH = -790 kJ S (s) + O2 (g) → SO2 (g) AH =…

A: According to Hess's Law If the reaction is multiplied (or divided) by some factor, ∆H must also be…

Q: 2. A sample of iron weighing 6.50 g (specific heat 0.449 J/g°C) is colled from 25.3°C to -68.7°C.…

A: The question is based on the concept of chemical thermodynamics. we have been given mass of iron…

Q: Arrange the metals in order of increasing final temperature when equal masses of Cr (c = 0.45…

A:

Q: Calculate the standard enthalpy of the reaction for the process 3RO(g) → R20(g) + RO2(g) using the…

A:

Q: (a) Write the balanced chemical equation that represents the standard heat of formation of Cu,0(s)…

A: (a) Cu2O is known as cuprous oxide

Q: The standard enthalpy change for the following reaction is -400 kJ at 298 K. Fe(s) + 3/2…

A: In order to calculate the standard enthalpy of given reaction, we need to know what to multiply to…

Q: How many kilojoules of heat will be released when exactly 5 moles of manganese are burned to form…

A: Given that: Moles of manganese = 5 moles Standard enthalpy of formation from Mn3O4(s) = -1380 kJ/mol…

Q: The standard enthalpy change for the following reaction is -763 kJ at 298 K. Ti(s) + 2 Cl2(g)…

A: The enthalpy change for the backward process the equal in magnitude but opposite in sign to the…

Q: The thermochemical equation describing the reaction of HI and Cl₂ at 1000 K is: 2HI (g) + Cl2 (g) →…

A: "To get remaining sub-parts solved please repost the complete question and mention the sub-parts to…

Q: Using the enthalpy of formation data from the appendix in the book, determine the enthalpy for the…

A: Given : Fe2O3(s)+CO(g)→Fe(l)+CO2(g)C2H6+O2→CO(g)+H2O(g) Enthalpy of formation of Fe(l)=36.6 KJ/mole…

Q: one of the following matter is not in its standard state: la. N¿(1) b. H,O(1) |c. S(s) |d. NH,(g)

A: On basis of intermolecular force of attraction the matter are classified into three state -A) solid…

Q: How much heat, in joules, must be added to a 75.0 g block of a metal alloy with a specific heat of…

A: Given, Mass of the substance, m = 75.0 g Initial temperature, T1 = 25 oC Final temperature, T2 = 775…

Q: The enthalpy of sublimation of calcium at 25 °c is 178.2 kJ mol- 1.How much energy (at constant…

A: The overall process for the conversion of calcium to plasma is shown below.…

Q: Thermite reaction can be used to produce molten iron for welding railway tracks together. Fe2O3(s)…

A: the solution is as follows:

Q: 36. The standard enthalpy (AH) for the reaction of CaCO, with HCI CaCo, + 2 HCI → CaCl, + H,0• CO, +…

A: Enthalpy is a thermodynamic quantity which are extensive property

Q: The standard enthalpy change for this reaction is -65.3 kJ/mol at 298 K. Si(s) + C(s,graphite)SiC(s)…

A:

Q: Use the data in Thermodynamic Properties to determine ΔH° for each of the following reactions.…

A: We have to find the ∆H° for the given reaction using thermodynamics relations., For a chemical…

Q: The enthalpy change for the reaction: 2H2(g)+ O2(g) → 2H2O(g) is -483.6 kJ. Determine the enthalpy…

A: The enthalpy change for the reaction: 2H2(g)+ O2(g) → 2H2O(g) now, for the following reaction 4H2(g)…

Q: Given the enthalpy changes for the following reactions, calculate H0f for CO(g). C (graphite) +…

A:

Q: Determine the standard enthal py of formation for the following reaction! СНЗСІ + CI2 -CH2CI2 + HCI

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Calculate the amount of heat transferred when 27.0 g of CH3OH(g) is decomposed by this by 2CH3OH(g)…

A: The balanced chemical reaction is given below.

Q: The sun supplies energy at a rate of about 1.0 kilowatt per square meter of surface area (1 watt = 1…

A:

Q: The standard molar enthalpy of formation of calcium carbonate (CaCO,) is –1206.9 kJ/mol What will be…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The thermite reaction was once used to weld rails: 2Al(s) + Fe2O3(s) --> Al2O3(s) 1 2Fe(s) (a) Using…

A:

Q: Consider the reaction of calcium carbide with liquid water: 1/2 CaC2(s) + H2O(l) 1/2…

A:

Q: The standard heat of formation for Brig) is 112 kJ/mol at 298 K. Write the formation equation for…

A: The standard heat of formation is defined as the change in enthalpy that takes place when 1.0 mole…

Q: Calculate the standard enthalpy change for the following reaction at 25 °C. MgCl, (s) + H,O(1)…

A:

Q: The first step in the industrial recovery of zinc from the zinc sulfide ore is roasting, that is,…

A: Given: molar mass of ZnS = 97.474 g/mol

Q: 2Fe+3CO2 3CO+ Fe2O3 AH = 24.7 kJ %3D How much heat is transferred if 15 g of iron is used?

A: The balanced equation is  2 Fe + 3 CO2 -----------> 3 CO + Fe2O3 Molecular weight of Fe = 55.845…

Q: Calculate the standard enthalpy change for the reaction at 25 ∘C.    C3H8(g)+5O2(g)⟶3CO2(g)+4H2O(g)

A: Enthalpy change of reaction: The enthalpy change of a reaction is roughly equivalent to the amount…

Q: Given the standard enthalpy changes for the following two reactions:

A:

Q: Given the following reaction equation: Zns (s) + 3/2 0 lg)+ Zno (s) +SO, (s) You are to determine…

A: The reaction for the combustion of Zinc sulfide (ZnS) is:ZnS (s) + 3/2 O2 (g) → ZnO (s) + SO2…

Q: How much heat is needed to raise the temperature of a metal bar from 35oC to 325oC if the specific…

A: Given, Mass of metal bar (m) = 255 g Specific heat capacity of metal bar (s) = 0.435 J/(g.K)…

Q: Iron oxides can be smelted in a blast furnace by reacting with CO(9), which serves as the reducing…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Calculate the standard enthalpy change for the following reaction conducted at 25°C: 2MGO(s)→ 2Mg(s)…

A:

Q: From the following enthalpy of reaction data and data in Appendix C, calculate AH; for CaC2 (s):…

A: The enthalpy change of a chemical reaction at the standard state is described by using each of the…

Q: The standard enthalpy change for the following reaction is 450 kJ at 298 K Cu(OH)2(s) → Cu(s) +…

A: Given:

Q: Calculate the enthalpy change for the thermite reaction: 2Al(s) + Fe2O3 (s)→2Fe(s) + Al½ O3 (s), AH°…

A: Enthalpy change is  an extensive property which depends on the moles of reactant molecules. Higher…

Q: Heptane (C7H16)(C7H16) is a component of gasoline that burns according to the following balanced…

A:

Q: Using the enthalpy of formation data from the appendix in the book, determine the enthalpy for the…

A:

Q: Calculate the standard enthalpy of formation, AHf°(in kJ mol-1), of solid MgO, given the following…

A:

Q: The standard enthalpy change for the following reaction is 561 kJ at 298 K. Sn(OH)2(s) → Sn(s,…

A: Given reactions are shown below,

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.