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0
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1
answer
23
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What is the standard enthalpy of formation of carbon dioxide (CO2) given that the standard enthalpy of combustion of carbon (C) and hydrogen gas (H2) are -394 kJ/mol and -286 kJ/mol, respectively?
asked
Feb 25
in
ThermoChemistry
0
votes
1
answer
19
views
What is the standard enthalpy of formation of ammonia gas (NH3) at 298 K, given that the standard enthalpy of formation of nitrogen gas (N2) and hydrogen gas (H2) are 0 kJ/mol and 0 kJ/mol, respectively?
asked
Feb 25
in
ThermoChemistry
0
votes
1
answer
32
views
What is the standard enthalpy of formation of carbon dioxide (CO2) from its elements at standard conditions if the standard enthalpy of formation of carbon (C) and oxygen (O2) are -94.05 kJ/mol and 0 kJ/mol, respectively?
asked
Feb 25
in
ThermoChemistry
0
votes
1
answer
24
views
What is the standard enthalpy of formation of carbon dioxide (CO2) when combustion of graphite and oxygen gas is proceeded? Given the standard enthalpy of formation of graphite is 0, and the standard enthalpy of formation of O2 is 0.
asked
Feb 25
in
ThermoChemistry
0
votes
1
answer
37
views
What is the standard enthalpy of formation of water (H2O) at 25°C and 1 atm pressure, given the heat of formation of hydrogen gas (H2) is +68.32 kJ/mol and the heat of formation of oxygen gas (O2) is zero?
asked
Feb 25
in
Chemical thermodynamics
0
votes
1
answer
32
views
What is the standard enthalpy of formation of butane (C4H10) at 298 K and 1 atm pressure?
asked
Feb 25
in
Chemical thermodynamics
0
votes
1
answer
27
views
What is the standard enthalpy of formation of methane (CH4) at constant temperature and pressure of 25°C and 1 atm respectively, given that the enthalpy change for the reaction C(s) + 2H2(g) -> CH4(g) is -74.8 kJ/mol?
asked
Feb 25
in
Chemical thermodynamics
0
votes
1
answer
28
views
What is the standard enthalpy change of vaporization of water at 373 K according to the following data:H2(g) + O2(g) → H2O(l) ΔH° = -285.8 kJ/molH2O(l) → H2O(g) ΔH° = +40.7 kJ/molNote: The answer should be in units of kJ/mol.
asked
Feb 25
in
Chemical thermodynamics
0
votes
1
answer
34
views
What is the standard enthalpy change of neutralization for the reaction between hydrochloric acid and sodium hydroxide, given that the heat of reaction for the neutralization of 1 mole of HCl and 1 mole of NaOH is -57.1 kJ?
asked
Feb 25
in
Chemical thermodynamics
0
votes
1
answer
31
views
What is the standard enthalpy change of neutralization for the reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH)? Assume that the reaction occurs in aqueous solution and that the products are water (H2O) and sodium chloride (NaCl).
asked
Feb 25
in
Chemical thermodynamics
0
votes
1
answer
32
views
What is the standard enthalpy change of neutralization for the reaction between hydrochloric acid and sodium hydroxide? Show all calculations and provide a conclusion based on your result.
asked
Feb 25
in
Chemical thermodynamics
0
votes
1
answer
39
views
What is the standard enthalpy change of fusion for water? Show your calculation using the given data: the molar enthalpy of fusion of ice is 6.01 kJ/mol and the molar enthalpy of vaporization of water is 40.67 kJ/mol.
asked
Feb 25
in
Chemical thermodynamics
0
votes
1
answer
36
views
What is the standard enthalpy change of formation of hydrogen gas (H2) when one mole of hydrogen gas is formed from its elements under standard conditions, given that the standard enthalpy change of formation for water (H2O) is -285.8 kJ/mol?
asked
Feb 25
in
ThermoChemistry
0
votes
1
answer
29
views
What is the standard enthalpy change of combustion for methane (CH4) gas at 298K and 1 atm pressure?
asked
Feb 25
in
Quantum Chemistry
0
votes
1
answer
36
views
What is the standard enthalpy change of combustion of methane gas (CH4) at 298K?
asked
Feb 25
in
Physical Chemistry
0
votes
1
answer
31
views
What is the standard enthalpy change for the vaporization reaction of ethanol (C2H5OH) at 298 K, given that the enthalpy of vaporization of ethanol is 38.56 kJ/mol and the standard enthalpy of formation of liquid ethanol is -277.69 kJ/mol?
asked
Feb 25
in
Chemical thermodynamics
0
votes
1
answer
30
views
What is the standard enthalpy change for the vaporization reaction of ethanol (C2H5OH) given that the heat of vaporization at its boiling point of 78.4 °C is 38.56 kJ/mol?
asked
Feb 25
in
Chemical thermodynamics
0
votes
1
answer
28
views
What is the standard enthalpy change for the vaporization of 50 grams of water at its boiling point (100°C) and standard pressure (1 atm)?
asked
Feb 25
in
Chemical thermodynamics
0
votes
1
answer
23
views
What is the standard enthalpy change for the sublimation of solid iodine into gaseous iodine atoms? Express your answer in units of kJ/mol.
asked
Feb 25
in
Chemical thermodynamics
0
votes
1
answer
29
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What is the standard enthalpy change for the sublimation of solid carbon dioxide at 25°C, if 50 g of carbon dioxide is sublimed?
asked
Feb 25
in
Chemical thermodynamics
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