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0
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23
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What is the enthalpy of vaporization of water? Given that the heat of vaporization of water at its boiling point (100°C) is 40.7 kJ/mol, calculate the enthalpy of vaporization of water at 25°C.
answered
Mar 1
in
ThermoChemistry
0
votes
38
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What is the enthalpy of vaporization of water at 100°C? Given that the vapor pressure of water at 100°C is 1 atm and the molar heat capacity at constant pressure of water is 75.3 J/mol*K. Also, assume that water behaves as an ideal gas.
answered
Mar 1
in
ThermoChemistry
0
votes
23
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What is the enthalpy of vaporization of benzene if it requires 45.8 kJ/mol of energy to vaporize 100 grams of benzene at its boiling point of 80.1°C?
answered
Mar 1
in
ThermoChemistry
0
votes
30
views
What is the enthalpy of solution of 5 grams of ammonium nitrate in 100 grams of water at room temperature? Given the molar heat of solution for ammonium nitrate is -25.7 kJ/mol.
answered
Mar 1
in
ThermoChemistry
0
votes
29
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What is the enthalpy of precipitation for the reaction between 50 ml of 0.1 M Pb(NO3)2 solution and 75 ml of 0.1 M NaI solution? Given that the standard enthalpy of formation of PbI2 is -360 kJ/mol.
answered
Mar 1
in
ThermoChemistry
0
votes
26
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What is the enthalpy of precipitation for the reaction between 0.1 M NaOH and 0.1 M CaCl2 at 25°C? Given that the enthalpy of formation for NaCl and Ca(OH)2 are -407.14 kJ/mol and -986.09 kJ/mol, respectively.
answered
Mar 1
in
ThermoChemistry
0
votes
41
views
What is the enthalpy of precipitation for the reaction between 50 mL of 0.2 M AgNO3 and 50 mL of 0.2 M NaCl? Given that the final volume of the solution is 100 mL and the temperature remains constant at 25°C.
answered
Mar 1
in
ThermoChemistry
0
votes
37
views
What is the enthalpy of polymerization of polystyrene if 25 grams of styrene monomer undergo polymerization at constant pressure and release 100 kJ of heat energy?
answered
Mar 1
in
ThermoChemistry
0
votes
29
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What is the enthalpy of polymerization of polystyrene if 10 grams of styrene monomer undergo complete polymerization in a constant pressure calorimeter and releases 1195 kJ of energy as heat?
answered
Mar 1
in
ThermoChemistry
0
votes
39
views
What is the enthalpy of formation of ammonia gas (NH3) at 298 K and 1 atm pressure using the given bond energies: N≡N = 418 kJ/mol, H-H = 436 kJ/mol, and N-H = 391 kJ/mol?
answered
Mar 1
in
ThermoChemistry
0
votes
46
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What is the enthalpy of dissolution of 10 grams of sodium chloride in 100 mL of water at 25°C, given that the final solution has a concentration of 1 M? (Assume that the specific heat capacity of the solution is 4.18 J/g°C)
answered
Mar 1
in
ThermoChemistry
0
votes
31
views
What is the enthalpy of combustion of ethane (C2H6), given that the complete combustion of 2.00 grams of ethane in excess oxygen produces 11.2 kJ of heat?
answered
Mar 1
in
ThermoChemistry
0
votes
27
views
What is the enthalpy change in kJ/mol when 2.00 g of methane (CH4) reacts with excess oxygen to form 1.50 g of carbon dioxide (CO2) and 0.75 g of water (H2O)? (Assume all reactants and products are in their standard states at 25°C and 1 atm pressure.)
answered
Mar 1
in
ThermoChemistry
0
votes
23
views
What is the enthalpy change when 10 g of sodium hydroxide (NaOH) is dissolved in 100 mL of water? The molar enthalpy of solution for NaOH is -44.5 kJ/mol.
answered
Mar 1
in
ThermoChemistry
0
votes
27
views
What is the enthalpy change when 25.0 g of potassium chloride is dissolved in 250 mL of water at 25°C? Given that the density of water is 0.997 g/mL and the enthalpy of solution of potassium chloride is -56.7 kJ/mol.
answered
Mar 1
in
ThermoChemistry
0
votes
30
views
What is the enthalpy change when 50.0 grams of ammonium chloride (NH4Cl) is dissolved in 250.0 mL of water at 25°C? The molar enthalpy of dissolution of NH4Cl is -14.8 kJ/mol.
answered
Mar 1
in
ThermoChemistry
0
votes
43
views
What is the enthalpy change of dissolving 5 grams of sodium hydroxide (NaOH) in 100 mL of water at 25°C? Given the molar enthalpy of dissolution for NaOH is -44.5 kJ/mol.
answered
Mar 1
in
ThermoChemistry
0
votes
29
views
What is the enthalpy change when dissolving 5 grams of NaOH in 100 ml of water at 25°C, given that the molar enthalpy of dissolution of NaOH is -44.5 kJ/mol?
answered
Mar 1
in
ThermoChemistry
0
votes
36
views
What is the enthalpy change when 10 g of potassium chloride (KCl) is dissolved in 100 mL of water at 25°C? The molar enthalpy of solution of KCl is -17.6 kJ/mol.
answered
Mar 1
in
ThermoChemistry
0
votes
43
views
What is the enthalpy change, in kilojoules per mole, when 6.0 grams of potassium chloride (KCl) is dissolved in 200.0 mL of water at 25°C? The molar heat of dissolution of KCl is -57.3 kJ/mol.
answered
Mar 1
in
ThermoChemistry
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