Recent questions in Chemical thermodynamics

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What is the standard enthalpy change for the combustion reaction of one mole of methane gas (CH4) at standard temperature and pressure?

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the combustion of methane (CH4) at 298 K and 1 atm pressure, given that the reactants and products are in their standard states?

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the combustion of 1 mole of graphite (solid) in oxygen gas to form 1 mole of carbon dioxide gas at standard conditions? (Given: Standard enthalpy of formation of CO2(g) = -393.5 kJ/mol)

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for sublimation of iodine, given that the heat of fusion of iodine is 15.4 kJ/mol and the heat of vaporization of iodine is 41 kJ/mol?

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change (ΔH°) for the sublimation of iodine (I2) at 298 K, given that the heats of fusion and vaporization of iodine are 15.5 kJ/mol and 41.7 kJ/mol respectively?

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change (∆H°f) for the formation of methane gas (CH4) from its elements in their standard states at 298 K? C (s) + 2H2 (g) → CH4 (g) Given Data: ∆H°f (kJ/mol) C (s) = 0 H2 (g) = 0 CH4 (g) = -74.8

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change (∆H°) for the sublimation of iodine (I2) assuming ideal gas behavior at 298K?

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard electrode potential of the following redox reaction at 25°C?Fe2+(aq) + 2e- -> Fe(s)Given that the standard electrode potential of Fe2+(aq) is +0.44 V and the standard electrode potential of Fe(s) is 0 V.

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard electrode potential of the Zn/Zn2+ half-cell at 25°C if its standard reduction potential is -0.76 V?

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard electrode potential for the redox reaction between copper and silver ions at 25°C and standard pressure (1 atm)?

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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What is the heat capacity of 25 grams of water at 25°C if it takes 4184 J of heat to raise its temperature by 1°C?

asked Feb 25 in Chemical thermodynamics by TheScientist (138k points)

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What is the reaction quotient, Q, for the chemical reaction below at 298K with [A] = 0.5 M, [B] = 2.0 M, and [C] = 1.0 M?2A + 3B ⇌ 4C

asked Feb 22 in Chemical thermodynamics by Georgianna69 (2.2k points)

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What is the reaction quotient Qc for the following equilibrium reaction at 25°C, given the molar concentrations of the reactants and products:2NO2(g) ⇌ 2NO(g) + O2(g)[NO] = 0.50 M, [O2] = 0.25 M, and [NO2] = 0.75 M.

asked Feb 22 in Chemical thermodynamics by JaneW5862561 (1.8k points)

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What is the reaction quotient (Qc) of the chemical reaction 2H2 + O2 → 2H2O at a temperature of 25°C given that the initial concentration of H2 is 0.5M, initial concentration of O2 is 0.2M, and initial concentration of H2O is 0M?

asked Feb 22 in Chemical thermodynamics by Barney65731 (1.4k points)

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What is the reaction quotient (Q) for the following chemical reaction at 25°C, if the initial concentrations of A, B, and C are 0.2 M, 1.0 M, and 0.5 M, respectively?2A + 3B ↔ 4C

asked Feb 22 in Chemical thermodynamics by AdelaideYwt4 (1.6k points)

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What is the reaction quotient for the following chemical reaction at 298K, given the concentrations of the reactants and products?2NO (g) + O2 (g) ⇌ 2NO2 (g)[NO] = 0.50 M[O2] = 0.25 M[NO2] = 0.75 M

asked Feb 22 in Chemical thermodynamics by ThedaP243851 (2.4k points)

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What is the standard enthalpy change for the reaction between hydrochloric acid and sodium hydroxide to form aqueous sodium chloride and water?

asked Feb 22 in Chemical thermodynamics by GudrunBatten (1.8k points)

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What is the standard enthalpy change for the reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH) to produce salt (NaCl) and water (H2O)?

asked Feb 22 in Chemical thermodynamics by GFXFlorida24 (1.5k points)

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What is the standard enthalpy change of the neutralization reaction between hydrochloric acid and sodium hydroxide, given that the initial concentration of both reactants was 1.0 mol/L and the reaction occurred at 25°C and 1 atm?

asked Feb 21 in Chemical thermodynamics by CarissaNevil (1.8k points)

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What is the standard enthalpy change for the neutralization reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH)? Express your answer in kilojoules per mole of HCl. (Assume that the reaction is in water and under standard conditions.)

asked Feb 21 in Chemical thermodynamics by EdgardoHinch (2.2k points)

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