If the enthalpy change for the transition of liquid water to steam
If the enthalpy change for the transition of liquid water to steam is 30 kJ mol⁻¹ at 27⁰C, the entropy…
5 years ago
Questions
For vaporization of water at 1 atmospheric pressure, the values of ΔH and ΔS
For vaporization of water at 1 atmospheric pressure, the values of ΔH and ΔS are 40.63 kJ mol⁻¹ and 108.8…
5 years ago
Standard entropies of X₂, Y₂ and XY₃ are 60, 40 and 50 J K⁻¹ mol⁻¹ respectively.
Standard entropies of X₂, Y₂ and XY₃ are 60, 40 and 50 J K⁻¹ mol⁻¹ respectively. For the reaction 1/2X₂…
5 years ago
For an endothermic reaction, energy of activation is Ea and enthalpy of reaction
For an endothermic reaction, energy of activation is Ea and enthalpy of reaction is ΔH (both of these in kJ/mol).…
5 years ago
The absolute enthalpy of neutralisation of the reaction
The absolute enthalpy of neutralisation of the reaction MgO(s) + 2HCl(aq) → MgCl₂(aq) + H₂O(l) will be Options (a) -57.33…
5 years ago
A reaction occurs spontaneously is
A reaction occurs spontaneously is Options (a) TΔS < ΔH and both ΔH and ΔS are +ve (b) TΔS >…
5 years ago
Which of the following pairs of a chemical reaction is certain to result
Which of the following pairs of a chemical reaction is certain to result in a spontaneous reaction Options (a) exothermic…
5 years ago
Considering entropy (S) as a thermodynamic parameter, the criterion
Considering entropy (S) as a thermodynamic parameter, the criterion for the spontaneity of any process is Options (a) ΔS system…
5 years ago
Standard enthalpy and standard entropy changes for the oxidation of ammonia
Standard enthalpy and standard entropy changes for the oxidation of ammonia at 298 K are -382.64 kJ mol⁻¹ and -145.6…
5 years ago
The work done during the expansion of a gas from a volume of 4 dm³ to 6 dm³
The work done during the expansion of a gas from a volume of 4 dm³ to 6 dm³ against a…
5 years ago