Answers by TheScientist

0 votes

26 views

What is the standard enthalpy change for the fusion of 1 mole of ice to liquid water at standard conditions of temperature and pressure? (Given: Enthalpy of fusion of water = 6.01 kJ/mol and the specific heat capacity of water = 4.18 J/g*K)

answered Feb 25 in Chemical thermodynamics

0 votes

46 views

What is the standard enthalpy change for the fusion of 1 mole of ice at 0°C and 1 atm pressure to liquid water at 0°C and 1 atm pressure? Given that the standard enthalpy of fusion of ice is 6.01 kJ/mol.

answered Feb 25 in Chemical thermodynamics

0 votes

27 views

What is the standard enthalpy change for the formation of 1 mole of carbon dioxide (CO2) gas from solid elemental carbon (C) and gaseous molecular oxygen (O2) at 298 K? The relevant balanced chemical equation is: C(s) + O2(g) → CO2(g).

answered Feb 25 in Chemical thermodynamics

0 votes

27 views

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

answered Feb 25 in Chemical thermodynamics

0 votes

26 views

What is the standard enthalpy change for the combustion of methane gas (CH4) at 298 K and 1 atm pressure?

answered Feb 25 in Physical Chemistry

0 votes

29 views

What is the standard enthalpy change for the combustion of methane (CH4) gas at 298 K and 1 atm?

answered Feb 25 in Physical Chemistry

0 votes

30 views

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?

answered Feb 25 in Chemical thermodynamics

0 votes

22 views

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)

answered Feb 25 in Chemical thermodynamics

0 votes

22 views

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?

answered Feb 25 in Chemical thermodynamics

0 votes

22 views

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?

answered Feb 25 in Chemical thermodynamics

0 votes

33 views

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

answered Feb 25 in Chemical thermodynamics

0 votes

24 views

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

answered Feb 25 in Chemical thermodynamics

0 votes

28 views

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.

answered Feb 25 in Chemical thermodynamics

0 votes

29 views

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

answered Feb 25 in Chemical thermodynamics

0 votes

36 views

What is the standard electrode potential for the reduction of Ag+ ions to Ag(s) at a temperature of 25°C, given that the standard electrode potential for the standard hydrogen electrode is 0.00 V and the standard electrode potential for Ag+/Ag is +0.80 V?

answered Feb 25 in ElectroChemistry

0 votes

27 views

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

answered Feb 25 in Chemical thermodynamics

0 votes

23 views

What is the standard electrode potential of a silver electrode (Ag) when it is dipped in a solution of silver nitrate (AgNO3) at 298 K and 1 atm pressure? The reduction half-reaction for silver is: Ag+(aq) + e- -> Ag(s).

answered Feb 25 in ElectroChemistry

0 votes

27 views

How does the interaction between nucleic acid components, including nitrogenous bases, sugar, and phosphate, affect the stability of the DNA double helix structure?

answered Feb 25 in BioChemistry

0 votes

32 views

What is the effect of pH on the stability of silver nanoparticles in a colloidal solution?

answered Feb 25 in Surface Chemistry

0 votes

24 views

What is the effect of pH on the stability of a silver nanoparticle sol in water?

answered Feb 25 in Physical Chemistry

Page:

« prev
1
...
75
76
77
78
79
80
81
82
83
...
93
next »

...