Consider the following reaction whose enthalpy changeIs ΔΗ- wS(s) + H,(g) -> H,S(g)AH = wThis equation is obtained using the following equationsalong with the Hess lawH,(g) + %0,(g) -> H,0()AH = xS(s) + 0,(g) > So(g)AH = yΔΗ ΥH,S(g) + 1%0,(g) -> H,O() + SO,(g) AH = zWhat is the relationship between enthalples w, x, y andz?O a. w=z+y -xO b. w=x + y -zO. W=S-Xx -yO d. w=x -y -zO e. w=z-y -xClear my choice

Answered: Image /qna-images/answer/fd7df64c-2b9b-425c-89b8-2f9eda081272.jpg

Consider the following reaction whose enthalpy change is AH = w s(s) + H,(g) > H,Sg) AH = W This equation is obtained using the following equations along with the Hess law H,(g) + %0,(g) -> H,O(1) AH = x (3) os (3)o + (s)s AH = y H,S(g) + 1%0,(g) -> H,0(1) + SO,(g) AH = Zz What is the relationship between enthalpies w, x, y and z? O a. w-z+y-x b. w=x+y-2 Oc w=s-x-y Od. w=x-y-z O e. wz-y -x Clear my choice

Consider the following reaction whose enthalpy change is AH = w s(s) + H,(g) > H,Sg) AH = W This equation is obtained using the following equations along with the Hess law H,(g) + %0,(g) -> H,O(1) AH = x (3) os (3)o + (s)s AH = y H,S(g) + 1%0,(g) -> H,0(1) + SO,(g) AH = Zz What is the relationship between enthalpies w, x, y and z? O a. w-z+y-x b. w=x+y-2 Oc w=s-x-y Od. w=x-y-z O e. wz-y -x Clear my choice

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter15: Energy And Chemical Change

Section: Chapter Questions

Problem 112A: sample of natural gas is analyzed and found to be88.4% methane (CH4) and 11.6% ethane (C2H6) bymass....

See similar textbooks

Similar questions

When one mol of KOH is neutralized by sulfuric acid, q=56 kJ. (This is called the heat of neutralization.) At 23.7C, 25.0 mL of 0.475 M H2SO4 is neutralized by 0.613 M KOH in a coffee-cup calorimeter. Assume that the specific heat of all solutions is 4.18J/gC, that the density of all solutions is 1.00 g/mL, and that volumes are additive. (a) How many mL of KOH is required to neutralize H2SO4? (b) What is the final temperature of the solution?
Would the amount of heat absorbed by the dissolution in Example 5.6 appear greater, lesser, or remain the same if the heat capacity of the calorimeter were taken into account? Explain your answer.
Write reactions for which the enthalpy change will be a. Hf for solid aluminum oxide. b. the standard enthalpy of combustion of liquid ethanol, C2H5OH(l). c. the standard enthalpy of neutralization of sodium hydroxide solution by hydrochloric acid. d. Hf for gaseous vinyl chloride, C2H3Cl(g). e. the enthalpy of combustion of liquid benzene, C6H6(l). f. the enthalpy of solution of solid ammonium bromide.
Peanuts and peanut oil are organic materials and bum in air. How many burning peanuts does it take to provide the energy to boil a cup of water (250 mL of water)? To solve this problem, we assume each peanut, with an average mass of 0.73 g, is 49% peanut oil and 21% starch; the remainder is noncombustible We further assume peanut oil is palmitic acid, C16H32O2, with an enthalpy of formation of 848.4 kJ/mol. Starch is a long chain of C6H10O5 units, each unit having an enthalpy of formation of 960 kJ.
sample of natural gas is analyzed and found to be88.4% methane (CH4) and 11.6% ethane (C2H6) bymass. The standard enthalpy of combustion of methaneto gaseous carbon dioxide (CO2) and liquid water (H2O) is -891 kJ/mol. Write the equation for the combustionof gaseous ethane to carbon dioxide and water.Calculate the standard enthalpy of combustion of ethaneusing standard enthalpies of formation from Table R-11on page 975. Using that result and the standard enthalpyof combustion of methane in Table 15.3, calculate theenergy released by the combustion of 1 kg of natural gas.
Combustion reactions involve reacting a substance with oxygen. When compounds containing carbon and hydrogen are combusted, carbon dioxide and water are the products. Using the enthalpies of combustion for C4H4 ( 2341 kJ/mol), C4H8 (2755 kJ/mol), and H2 (286 kJ/mol), calculate H for the reaction C4H4(g)+2H2(g)C4H8(g)
Benzoic acid, C6H5COOH, is a common standard used in bomb calorimeters, which maintain a constant volume. If 1.20 g of benzoic acid gives off 31, 723 J of energy when burned in the presence of excess oxygen and in a water bath having a temperature of 24.6 C, calculate q, w, H, and U for the reaction.
The heat of neutralization, Hneut, can be defined as the amount of heat released (or absorbed), q, per mole of acid (or base) neutralized. Hneut for nitric acid is -52 kJ/mol HNO3. At 27.3C, 50.00 mL of 0.743M HNO3 is neutralized by 1.00 M Sr(OH)2 in a coffee-cup calorimeter. (a) How many mL of Sr(OH)2 were used in the neutralization? (b) What is the final temperature of the resulting solution? (Use the assumptions in Question 11.)
How much heat is produced when loo mL of 0.250 M HCl (density, 1.00 g/mL) and 200 mL of 0.150 M NaOH (density, 1.00 g/mL) are mixed? HCl(aq)+NaO(aq)NaCl(aq)+H2O(l)H298=58kJ If both solutions are at the same temperature and the heat capacity of the products is 4.19 J/g C, how much will the temperature increase? What assumption did you make in your calculation?