Recent questions in Chemical thermodynamics

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What is the standard enthalpy change for the reaction 2H₂(g) + O₂(g) -> 2H₂O(l), given the standard enthalpies of formation for H₂O(l), H₂(g) and O₂(g) as -285.8 kJ/mol, 0 kJ/mol and 0 kJ/mol, respectively?

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the reaction N2(g) + 3H2(g) → 2NH3(g) at 298 K, given that the standard enthalpies of formation of nitrogen dioxide, water and ammonia are 82.05 kJ/mol, -285.83 kJ/mol and -46.19 kJ/mol, respectively?

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the reaction N2(g) + 3H2(g) → 2NH3(g) given the following standard enthalpies of formation: ΔHf°(N2)=0 kJ/mol, ΔHf°(H2)=0 kJ/mol, ΔHf°(NH3)=-46.2 kJ/mol? Make sure to show your calculations and units.

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the reaction N2(g) + 3H2(g) → 2NH3(g) at 298 K, given that the standard enthalpy of formation of NH3(g) is -46.1 kJ mol-1?

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the reaction of gaseous hydrogen and gaseous iodine to form hydrogen iodide at standard temperature and pressure? Show all steps of calculation using Hess's Law and relevant thermochemical equations.

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH) in aqueous solutions when 25 mL of 2.0M HCl is mixed with 50 mL of 1.0M NaOH at 25⁰C and atmospheric pressure?

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the reaction between 50 mL of 0.1 M HCl(aq) and 50 mL of 0.1 M NaOH(aq) at 25°C, given that the resulting solution has a density of 1.05 g/mL and a heat capacity of 4.184 J/goC?

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the reaction between copper(II) sulfate pentahydrate and ammonia to form the deep blue complex ion Cu(NH3)4(H2O)2SO4? Show all the steps involved in calculating the standard enthalpy change.

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the reaction between 1 mol of ethanoic acid and 1 mol of sodium hydroxide in aqueous solution, given that the reaction produces 1 mol of sodium ethanoate and 1 mol of water?

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the precipitation reaction between aqueous solutions of silver nitrate (AgNO3) and sodium chloride (NaCl) to form solid silver chloride (AgCl) and aqueous sodium nitrate (NaNO3)?

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the phase transition reaction of water from ice to liquid at 25°C and 1 atm pressure?

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the phase transition reaction of ice to water at 1 atm and 25°C? Given the enthalpies of fusion and vaporization of water as 6.01 kJ/mol and 40.67 kJ/mol, respectively.

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the neutralization of 25.0 mL of 0.100 M hydrochloric acid with 25.0 mL of 0.100 M sodium hydroxide, given that the specific heat capacity of the solution is 4.18 J/g°C and the temperature change is 5.0°C?

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the neutralization reaction of 50 mL of 2M hydrochloric acid and 50 mL of 2M sodium hydroxide at 25°C?

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the neutralization of 50mL of 1M HCl solution with 50mL of 1M NaOH solution at 25°C?

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the fusion reaction of 10.0 grams of solid water (H2O) at 0°C into liquid water at 0°C, given the standard enthalpy of fusion for water is 6.01 kJ/mol?

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the fusion reaction of 2.5 grams of ice at 0 degrees Celsius?

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the fusion reaction between aluminum and oxygen to form aluminum oxide if 10 grams of aluminum reacts completely with excess oxygen under standard conditions?

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the fusion of solid sodium chloride at 25°C and 1 atm, given the following reaction: NaCl(s) → Na(l) + Cl2(g)?

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the fusion of 50 grams of ice at 0°C to liquid water at 25°C, assuming constant pressure and no heat loss to the surroundings?

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

Recent questions in Chemical thermodynamics

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