c) Calculate the standard enthalpy change for the reaction 3C(s) + 4H2 (g) C3H8 (g) Given that C(s) + O2 (g) CO2 (g) AH° = -394 kJmol· H2 (g) + ½O2 (g) H2O (I) AH° = -286 kJmol! C3H8 (g) + 502 (g) 3CO2 (g) + 4H2O (I) AH° =-2220 kJmol

Q: When 0.659g of glucose (C6H12O6) undergoes combustion 8n a constant volume (bomb) calorimeter, the…

A: Thermodynamics is the study of different types of energies. Enthalpy is the sum of internal energy…

Q: The standard enthalpy change of combustion [to CO2(g) and H20(€)] at 25°C of the organic liquid…

A: The combustion reaction can be given as: The given information is: According to the standard…

Q: Indicate the sign of the enthalpy change, ΔH, in the following processes carried out under…

A: When a reaction takes place, various bonds are formed and broken. Due to this, the energy of…

Q: The combustion of 1.00 mol of glucose (C6H12O6) liberates 2820 kJ of heat. If 1.13 g of glucose is…

A:

Q: In a coffee cup calorimeter, a student places 0.500 g of calcium, followed by addition of 50.0 mL of…

A:

Q: When 1.49 mL of 0.410 M of HI(aq) is combined with 9.66 mL of 0.570 M of NaOH(aq) in a coffee-cup…

A: The balanced reaction for the HI and NaOH is as follows: HI(aq) + NaOH(aq) → NaI(aq) + H2O(l) The…

Q: Why is the standard enthalpy of formation of C0(g), C(s) + ½ 02(g) → CO(g), difficult to measure…

A:

Q: In a generic chemical reaction involving reactants A and B and products C and D, aA + bB»cC + dD,…

A:

Q: The standard enthalpy change of combustion [to CO,(g) and H,O(€)] at 25°C of the organic liquid…

A: Given information: Enthalpy change for combustion of liquid cyclohexane = -3731.7 kJ/mol

Q: The standard enthalpy of combustion for cyclohexane (C6H12,l) is -3920 kJ.mol-1 at 25 °C. Use this…

A: Enthalpy of a reaction can be written in terms of enthalpy of formation of reactants and products as…

Q: When 50.00 mL of aqueous HCl was mixed with 50.00 mL of NaOH (in large excess), the temperature of…

A:

Q: Mass of Empty Calorimeter is 7.73g, mass of calorimeter + water is 46.875g, mass of water is…

A: Concept: The experimental value of Specific Heat Capacity of Metal Cmetal is compared with the…

Q: The combustion of 1.00 mol of glucose (C6H12O6) liberates 2820 kJ of heat. If 1.66 g of glucose is…

A:

Q: Mass of Empty Calorimeter  is 7.73g, mass of calorimeter + water is 46.875g, mass of water is…

A: m = mass, measured in grams  Δt = temperature change =78.5°C . The heat capacity, C, of a substance…

Q: Consider the following reaction: NacI (s) - Na* (aq) + Cl" (ag) AH = In a coffee-cup calorimeter you…

A: Initial temperature of solution Ti = 26.4 °C Final temperature of solution Tf = 24.1 °C Change in…

Q: The standard heat of combustion of liquid methyl cyclopentane, C6H12(l),C6H12(l), was measured to be…

A:

Q: The enthalpy change for the oxidation of vinylcyclopropane, C3 Hs, is measured by calorimetry. C,Hs…

A: Given: Standard enthalpy change of CO2(g) = -393.509 kJ/mol Standard enthalpy change of O2(g) =0…

Q: In a coffee cup calorimeter, 55.0 mL of 1.26 M CUSO, was reacted with 43.5 mL of 2.53 M KOH. The…

A:

Q: he gross heat of combustion for ethyl alcohol (C2H5OH) is -1,370 kJ/mol. What is its standard…

A: Solution -

Q: 5.25mL of a 1.35M solution of sodium hydroxide is combined with 6.90mL of a 810.mM solution of…

A: The enthalpy of neutralization is 7.1790 kcal/mol.

Q: what volume of CO2 gas in Liters is produced if this reaction occurs at a pressure of 748 torr and…

A: We have to find what volume of CO2 gas in Liters is produced if this reaction occurs at a pressure…

Q: To determine the specific heat of a newly created, highly conducting material, a 704.8 mg sample of…

A: Mass of sample = 704.8 mg  Heat supply = 35.548  J  Initial temperature = 297.05 k  Final…

Q: Change in enthalpy (H) of a system can be calculated by the following relationship O AH=AU+PAV O…

A: H=enthalpy  Enthalpy change can be given by following formula

Q: 20.) Industrial production of methanol uses a synthesis gas which is a mixture of carbon monoxide…

A: This problem is based on Hess's law Hess's law states that the enthalpy change or heat evolved or…

Q: How does the thermochemical equation S (s) + O2 (g) - SO2 (g), AH = -296 kJ, need to be modified to…

A: Enthalpy (∆H) is a property which is the sum of systems internal energy and the product of it's…

Q: 3. Calculate the standard enthalphy of acetylene (CH2) form its elements: CH2) 2C(graphite)+ H2()…

A: "Dear student as you posted multiple different , as per guidelines we shall solve first question…

Q: 2. Determine the standard enthalpy change (AH°) for the reaction: C,H +7/2 Ozg 2CO2le) + 3H,O

A: The chemical reactions involve the liberation or absorption of energy. The change in energy is…

Q: When 2.35 g of NaCl are added to 111 g of water in a constant pressure calorimeter, the temperature…

A:

Q: The standard enthalpy of formation (AH°t) of C2H4(g) is +52.4 kJ/mol. What is the coefficient of H2…

A: The formation reaction of C2H4 (g) is: 2C (graphite, s) + 2H2(g) →C2H4 (g)

Q: Write reactions for which the enthalpy change will be (Be sure to specify states such as (aq) or…

A: 1 ∆H°f solid zinc oxide       2zns +O2g→2znOs  2 the standard enthalpy of combustion of liquid…

Q: The combustion of 1.00 mol of glucose (C6H1206) liberates 2820 kJ of heat. If 1.13 g of glucose is…

A: Moles of glucose are, Moles = mass ÷ molar mass Moles = 1.13 g ÷ 180 g/mol Moles = 0.0063 mol   Heat…

Q: the enthalpy of reaction is -11.7 kJ/mol for the following reaction HCN(aq) + NaOH(aq) --> H2O(I) +…

A: Given mass of HCN = 0.926 g specific heat C = 4.18 J/g°C total mass = 77.3 g enthalpy of reaction =…

Q: A calorimeter contains 20.0 mLmL of water at 11.0 ∘C∘C . When 2.10 gg of XX (a substance with a…

A: Volume of water ,= 20 ml  Density of water = 1gm/ml  Mass of water = density x volume = 20 x 1 = 20…

Q: Given information 4C (s) +3 H2 (g) - The standard enthalpy of formation for H;0 (e) is b k/mol. CHe…

A: By using experiement we can get required equation

Q: Calculate the standard enthalpies of combustion at 25°C CAH8 cg) + H 2 Ca) -> C4 Hio Cg) Of AH =…

A: ΔH0Combustion is the heat produced when butane undergo combustion and this can be calculated by…

Q: Mass of empty Calorimeter is 7.73g, mass of calorimeter + water is 46.875g, mass of water is…

A:

Q: In a generic chemical reaction involving reactants A and B and products C and D, aA+bB→cC+dD, the…

A: CO  (g)  +   NH3   (g)   →    HCN   (g)   +   H2O(g) This equation is already balanced so,ΔH∘rxn  =…

Q: Given information 4C(s)+3 H2 The standard enthalpy of formation for H0 (e) is bkj/mol. co, -C(s) •…

A:

Q: 4. The standard enthalpies of combustion reaction at 25 °C of H2i9) , n-butane, C«H10(g) , 1-…

A: We have to find enthalpy of reaction.

Q: Glucose, C6H12O6(s), (ΔHr° = -1275.2kJ/mol ) is converted to ethyl alcohol, C2H5OH(l), and carbon…

A:

Q: The standard enthalpies of formation of gaseous propyne (C3H4)(C3H4), propylene (C3H6)(C3H6), and…

A: Given information, The standard enthalpies of formation of gaseous propyne (C3H4), propylene (C3H6),…

Q: Write the equation corresponding to the standard enthalpy of formation of liquid carbon…

A: The chemical reaction corresponding to formation of carbon tetrachloride is given as:C (s) + 2 Cl2…

Q: In a generic chemical reaction involving reactants A and B and products C and D, aA + 6B>cC+ dD, the…

A: Consider the given balanced equation is as follows; CO g    +    NH3 g    →    HCN g    +    H2O g…

Q: The standard enthalpy change of combustion [to CO2(g) and H2O()] at 25°C of the organic solid…

A:

Q: In a generic chemical reaction involving reactants A and B and products C and D, aA + bB¬cC+dD, the…

A: The balanced reaction taking place is  => H2O (l) + CCl4 (l) -------> COCl2 (g) + 2 HCl (g)

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.