Determine the heat of evaporation of carbon disulfide,
CS 2( ) → CS
2(g)
given the enthalpies of reaction below.
C(s) + 2 S(s) → CS2() | ΔrH° = +89.4 kJ/mol-rxn | |
C(s) + 2 S(s) → CS2(g) | ΔrH° = +116.7 kJ/mol-rxn |
a. |
–206.1 kJ |
|
b. |
+27.3 kJ |
|
c. |
–27.3 kJ |
|
d. |
+206.1 kJ |
|
e. |
+1.31 kJ |
Determine the heat of evaporation of carbon disulfide, CS 2( ) → CS 2(g) given the...
Determine the heat of evaporation of carbon disulfide, CS 2() - CS 2(g) given the enthalpies of reaction below. C(s) + 2 S(s)-CS() C(s) + 2 S(s) - CS2(g) ArHº = +89.4 kJ/mol-rxn ArHº = -116.7 kJ/mol-rxn Which of the following has zero standard enthalpy of formation at 25 °C? a. Br2(g) Ob. Br(s) O c. Br(g) O d. Br2(5) Oe. Br2(1)
Determine ΔrH° for the following reaction, 2 NH3(g) + 5/2 O2(g) → 2 NO(g) + 3 H2O(g) given the thermochemical equations below. N2(g) + O2(g) → 2 NO(g) ΔrH° = +180.8 kJ/mol-rxn N2(g) + 3 H2(g) → 2 NH3(g) ΔrH° = –91.8 kJ/mol-rxn2 2H2(g) + O2(g) → 2 H2O(g) ΔrH° = –483.6 kJ/mol-rxn a. –1178.2 kJ/mol-rxn b. –452.8 kJ/mol-rxn c. –394.6 kJ/mol-rxn d. –211.0 kJ/mol-rxn e. +1178.2 kJ/mol-rxn
Carbon disulfide is produced by the reaction of carbon and sulfur dioxide. 5C(s) + 280,(9)-CS (9) + 4CO(9) Part A What is the percent yield of carbon disulfide if the reaction of 40.3 g of carbon produces 34.0 g of carbon disulfide? Express your answer with the appropriate units. The percent yield of CS2 = Value Units Submit Request Answer Part B What is the percent yield of carbon disulfide if the reaction of 33.8 g of sulfur dioxide produces...
Determine the standard enthalpy of formation of calcium carbonate from the thermochemical equations given below.Ca(OH)2(s) → CaO(s) + H2O()ΔrH° = 65.2 kJ/mol-rxnCa(OH)2(s) + CO2(g) → CaCO3(s) + H2O()ΔrH° = −113.8 kJ/mol-rxnC(s) + O2(g) → CO2(g)ΔrH° = −393.5 kJ/mol-rxn2 Ca(s) + O2(g) → 2 CaO(s)ΔrH° = −1270.2 kJ/mol-rxna.−1712.3 kJ/mol-rxnb.−1207.6 kJ/mol-rxnc.−980.6 kJ/mol-rxnd.−849.6 kJ/mol-rxne.−441.8 kJ/mol-rxn
Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation is S,(g) + C(s) = CS, (g) Kc = 9.40 at 900 K How many grams of CS2(g) can be prepared by heating 11.8 mol S2(g) with excess carbon in a 6.15 L reaction vessel held at 900 K until equilibrium is attained? mass of CS2(g): 09
The heat of vaporization of carbon disulfide is 27.4 kJ/mol at its boiling point of 46.3 °C. What is the change in enthalpy when 12.5 g CS2 condenses at 46.3 °C?
Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation is S2(g) + C(s) = CS, (g) Kc = 9.40 at 900 K How many grams of CS2(g) can be prepared by heating 11.4 mol S2(g) with excess carbon in a 5.15 L reaction vessel held at 900 K until equilibrium is attained? mass of CS2(g): bun
Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation is S2(g) + C(s) = CS (8) K. = 9.40 at 900 K How many grams of CS2(g) can be prepared by heating 17.9 mol S2(g) with excess carbon in a 7.90 L reaction vessel held at 900 K until equilibrium is attained?
THALPY, ENTROPY, AND FREE ENERGY Carbon disulfide, CS2, is a toxic, highly flammable substance that is an excellent solvent for large, nonpolar, organic species such as fats, resins, rubbers, and asphalt. The following thermodynamic data are available for CS, (g) and CS, (1) at 298 K: CS2 (8) CS2 (D) 67.2 65.3 89.7 a) Liquid CS, burns in oxygen with a blue flame, forming CO,(8) and SO, (g). Write a balanced chemical equation for this reac tion. Calculate the ΔΗΡ...
Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation is S2(g) + C(s) = CS, (g) Kc = 9.40 at 900 K How many grams of CS, (g) can be prepared by heating 15.5 mol S, (g) with excess carbon in a 7.40 L reaction vessel held at 900 K until equilibrium is attained? mass of CS2(g): g At a certain temperature, the Kp for the decomposition of H. S is 0.752. HS(g) =H2(g) + S(g) Initially,...