Given the thermochemical equations X, + 3 Y, → 2 XY, AH1 = -390 kJ X, +2 Z, → 2 XZ, AH2 = -160 kJ AH3 = -230 kJ 2 Y, + Z, → 2 Y,Z Calculate the change in enthalpy for the reaction. 4 XY3 + 7 Z, - → 6 Y,Z + 4XZ, ΔΗ- kJ

Given the thermochemical equations X, + 3 Y, → 2 XY, AH1 = -390 kJ X, +2 Z, → 2 XZ, AH2 = -160 kJ AH3 = -230 kJ 2 Y, + Z, → 2 Y,Z Calculate the change in enthalpy for the reaction. 4 XY3 + 7 Z, - → 6 Y,Z + 4XZ, ΔΗ- kJ

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: Use the given information to calculate the enthalpy of reaction for the following reaction: P4010…

A: Since,According to Hess's law change of enthalpy in a chemical reaction is same regardless of…

Q: Calculate the enthalpy change for reaction (a), given the data in equations (b), (c), and (d). AH =…

A: The objective of the question is to calculate the enthalpy change for the reaction (a) using the…

Q: A scientist measures the standard enthalpy change for the following reaction to be - 2914.6 kJ:…

A: Heat of formation of a reaction can be calculate such as ∆Hrex = Σ ∆Hf( product) - Σ ∆Hf( reactant)

Q: heat

Q: Use the standard reaction enthalpies given below to determine AH°rxn for the following reaction: 4…

Q: Use the standard reaction enthalpies given below to determine ΔΗ, for the following reaction: rxn 8…

Q: H2(g) + F2(g) → 2 HF(g) ΔH = -542 kJ What would be the enthalpy change for the reverse of the…

A: Since, The standard enthalpy of the formation is defined as change of enthalpy of 1 mol of the…

Q: Use the standard reaction enthalpies given below to determine AH xn for the following reaction 4…

Q: the thermo-chemical equations shown below to determine the entha N₂(g) + 3H₂(g)=>2NH3(g) AH = ?…

Q: calculate the change in enthalpy for Reaction 2. Reaction 1:…

A: Given Reaction 1: C3H8(g) + 5O2(g)→3CO2(g) + 4H2O(g) ∆H1 = -2043 kJ mol-1 Reaction 2: 6C3H8(g) +…

Q: If a system has 475 kcal475 kcal of work done to it, and releases 5.00×102 kJ5.00×102 kJ of heat…

Q: find the change in enthalpy for the reaction below, given the following reactions and change in…

A: Given 2NH3(g) →N2H4(l) + H2(g) ΔH = 22.5 kJ 2NH3(g) → N2(g) + 3H2(g) ΔH = 57.5 kJ CH2O(g) +…

Q: * Given the Standard enthalpy changes for the following two reactions: 1) 4C (s) + 6H₂ (g) → C₂ H₁0…

A: -> When reaction is multiplied with any constant then enthalpy also multiplied. ->When…

Q: 3) Use the standard reaction enthalpies given below to determine AHD rxn reaction 2 NO(g) + O2(g) →…

A: Concept of Hess' law:It states that the change of enthalpy in a chemical reaction is not dependent…

Q: For which of the following equations does ΔHrxn represent ΔHf (enthalpy of formation) for the…

A: The thermo-chemical reactions which are given as follows H2(g) + ½ O2(g) → H2O(ℓ) H+(aq) +…

Q: If the reaction of 2.5 g of Ca transfers 487 J of heat to a solution in a calorimeter (i.e. qsoln =…

A: Given : Mass of Ca reacting = 2.5 g And amount of heat transferred to the solution = 487 J Atomic…

Q: If 20.0 g of CH4 reacts with excess oxygen, what is the change in enthalpy for the reaction?…

A: The reaction considered is the combustion of methane and it is exothermic.

Q: For the chemical reaction H₂ (g) + F2 (g) → 2 HF (g) AH° = -79.2 kJ/mol. What is the molar enthalpy…

A: In the given question, molar enthalpy of a reaction is given as :- H2(g) + F2(g) -----> 2HF(g)…

Q: Calculate the change in enthalpy when 20.2g of oxygen reacts according to the following equation:…

Q: A scientist measures the standard enthalpy change for the following reaction to be -145.7 kJ :…

A: The enthalpy of the reaction is considered as the state function that is it depends only on the…

Q: What is the standard molar enthalpy of formation (AHFº) for Al203 based on the thermochemical…

A: The two given thermochemical reaction are as follows; 4Fe(s) + 3O2(g) -------------> 2Fe2O3(s).…

Q: Use the balanced thermochemical equations shown below (reactions 1,2, & 3) to determine the enthalpy…

A: Solid magnesium react with oxygen and produced solid magnesium oxide

Q: For the reaction H,(2) + 0,) → H,0M AH = - 286KJ/mol Calculate the enthalpy change when 2.50 g of…

Q: Given the following enthalpy change values for the reactions below: A + B → 2C; AH = 286.5 kJ mol-1…

A: Given A + b → 2C ; ΔrH = 286.5 kJ/mol C + 2D → E + F; ΔrH = 41.8 kJ/mol H → (1/2)E + G ; ΔrH = 41.8…

Q: What is the change in internal energy of the system (AU) if 71 kJ of heat energy is absorbed by the…

Q: AHixn

Q: Many portable gas heaters and grills use propane, C3 Hs (g). Using enthalpies of formation,…

Q: Given the thermochemical equations X, +3 Y, – 2XY3 AH1 = -380 kJ X, +2Z, ► 2 XZ, AH2 = -110 kJ 2 Y,…

Q: A system absorbs 1.66E2 kJ of heat and the surroundings do 1.032E2 kJ of work on the system. What is…

A: We have to predict the change in internal energy of system.

Q: What is the change in the enthalpy (in kJ) for the complete combustion of 39.0 g of fructose,…

A: Heat of reaction or enthalpy change∆Hrxn is defined as heat released and absorbed during a reaction.…

Q: Use the following information to determine the enthalpy for the reaction shown below. CS2() + 302(g)…

Q: Use standard enthalpies of formation to calculate ΔH∘rxnΔHrxn∘ for the following reaction:…

A: Given reaction: CaO(s)+CO2(g)→CaCO3(s) We have to calculate the ΔH∘rxn using the standard enthalpies…

Q: calculate the standard enthalpy of reaction for the imaginary reaction XxA2(g) + 2 Z2(I) -->…

A: Given, XxA2(g) + 2 Z2(I) --> XxZ4(g) + 2 A(g) Standard enthalpy of the reaction (∆H°rxn) = ?…

Q: 4 CH3NH2 (g) + 2 H2O (l) ➝ CO2 (g) + 3 CH4 (g) + 4 NH3 (g) ΔHº = –138.96 kJ • Calculate the…

A: Given- 4 CH3NH2 (g) + 2 H2O (l) ➝ CO2 (g) + 3 CH4 (g) + 4 NH3 (g) ΔHº = –138.96 kJ To find -…

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

Q: Given the following reaction and enthalpy value: H2(g) + I2(g) -> 2HI(g) deltaH = +52.96 kJ…

A: we know that enthalpy is additive in nature means when reaction add then enthalpy of reaction also…

Q: Using standard heats of formation, calculate the standard enthalpy change for the following…

A: Solution: Standard enthalpy of formation is the difference in the enthalpy of formation…

Question

Given the thermochemical equations
X, + 3 Y, → 2 XY,
AH1 = -390 kJ
X, +2 Z, → 2 XZ,
AH2 = -160 kJ
AH3 = -230 kJ
2 Y, + Z, → 2 Y,Z
Calculate the change in enthalpy for the reaction.
4 XY3 + 7 Z, -
→ 6 Y,Z + 4XZ,
ΔΗ-
kJ

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

For the reaction below (which will be labeled reaction A), the reaction enthalpy is unknown: 2 B + 3 H2 B2H6 HA = ? Use the following thermochemical data to calculate the reaction enthalpy ΔHA: Reaction 1: 4 B + 3 O2 → 2 B2O3 ΔH1 = –2509 kJ Reaction 2: 2 H2 + O2 → 2 H2O ΔH2 = –572 kJ Reaction 3: B2H6 + 3 O2 → B2O3 + 3 H2O ΔH3 = –2,159 kJ Calculate the enthalpy of reaction A (in kJ) and enter the numerical value in the answer box. Do not write units in the answer box. Clearly show on a paper how each reaction can be combined to equal reaction A (multiply or reverse each of the above reactions).complete work must be uploaded
When methanol, CH, OH, is burned in the presence of oxygen gas, O,, a large amount of heat energy is released. For this reason, it is often used as a fuel in high performance racing cars. The combustion of methanol has the balanced, thermochemical equation CH, OH(g) + 0,(g) → CO,(g) + 2 H,O(1) ΔΗ --764 kJ How much methanol, in grams, must be burned to produce 837 kJ of heat?
Use Hess's Law to calculate the enthalpy for this reaction: 4SO3(g) → 4S(s) + 602(g) AH° ??? kJ !! rxn Given the following thermochemical equations: SO2(g)→ S(s) + O2{g) AH° = +296.8 kJ 2SO2(g) + O2(g) → 2SO3(g) AH° = -197.8 kJ
Given the two thermochemical equations below, find the enthalpy change for the reaction: N2H4 (l) + H2 (g) → 2 NH3 (g) delta H = ? Given: N2O4 (g) + 3 H2 (g) → 2 NH3 (g) + 2 O2 (g) delta H = – 100.96 kJ N2O4 (g) + 2 H2 (g) → N2H4 (l) + 2 O2 (g) delta H = + 41.47 kJ Select one: a. – 142.43 kJ b. – 59.49 kJ c. + 41.47 kJ d. + 59.49 kJ e. + 142.43 kJ f. none of these g. – 100.96 kJ
Combustion of a hydrocarbon, X, is given by the equation: 2 X + 5 O2 (g) --> 4 CO2 (g) + 6 H2O (g) ∆H = -75.0 kJ Determine the standard enthalpy of formation of the hydrocarbon, X.
Use Hess’s law to calculate the enthalpy change for the reaction WO3(s) + 3H2(g) —> W(s) +3H2O(g) from the following data: 2W(s) + 3O2(g) —> 2 WO3(s) H=-1685.4 2H2(g) + O2(g) —> 2H2O(g) H=-477.84
Using the standard enthalpies of formation, what is the standard enthalpy of reaction? CO(g) + H,O(g) –→ CO,(g) + H,(g) AHân = kJ
The balanced thermochemical equation for the combustion of exactly one mole of propane is: C3H8 (g) + 5 O2 (g) → 3 CO2 (g) + 4 H2O(l) ΔH = -2220 kJ/mol What is the enthalpy change for the reaction: 1.5 CO2 (g) + 2 H2O(l) → 0.5 C3H8 (g) + 2.5 O2 (g) ΔH = ?
（1）Consider the reaction: 2A (g) + 3 B (g) → 2 C (g) ΔHrxn = +254.3 kJ What will be the enthalpy change (in kJ) if 0.471 mol B reacts in excess A? （2）Consider the reaction: C (s) + O2 (g) → CO2 (g) ΔHrxn = -393.5 kJ What mass of carbon (in g) must be reacted via this mechanism to release 581.2 kJ of heat?
Consider the following information: A + B → C + D AH° = -15 kJ mol-1 C + D → E AH° = +5 kJ mol-1 Calculate the enthalpy for the following reaction: 2A+2B → 2E
A scientist measures the standard enthalpy change for the following reaction to be - 770.6 kJ: 2NO(g) + 2H₂(g) → N₂(g) + 2H₂O (1) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of H₂O(1) is kJ/mol. Substance AH (kJ/mol) NO(g) H₂(g) N₂ (9) 90.3 0.0 0.0