Grade 12Physical Chemistry
what is d enthalpy and gibbs free energy change during the formation of aqeous ions?
what is d enthalpy and gibbs free energy change during the formation of aqeous ions?
5 Answers
suresh
Approved Tutor Answer11 Years agoThe net enthalpy change occurring during dissolution of 1 mol of solid (∆solH) is given by the expression
∆solH = ∆LH + ∆HydH)
∆LH and ∆HydH are Lattice energy, and hydration energy, respectively.
- If ∆Hyd ∆LH; Dissolution occurs with ∆Hyd
- If ∆Hyd marginally less than ∆LH even then dissolution takes place ∆Hyd>0.
- If ∆LH is too large to be compensating by ∆Hyd then dissolution doesn’t takes place.
suresh
The net enthalpy change occurring during dissolution of 1 mol of solid (∆solH) is given by the expression
∆solH = ∆LH + ∆HydH)
∆LH and ∆HydH are Lattice energy, and hydration energy, respectively.
- If ∆Hyd ∆LH; Dissolution occurs with ∆Hyd
- If ∆Hyd marginally less than ∆LH even then dissolution takes place ∆Hyd>0.
- If ∆LH is too large to be compensating by ∆Hyd then dissolution doesn’t takes place.
suresh
Gibbs free enrgy negative for spontaneous process.
and temperatue and entropy are having the significat effect on free enrgy values.
naina
thank you for quick response
britto george
this is easy question and you can try to solve it
Other Related Questions on physical chemistry
Which of the following aqueous solutions remains neutral after
electrolysis
Which of the following aqueous solutions remains neutral after
electrolysis
electrolysis
physical chemistry
Last Activity: 3 Years ago
In the reaction A + 2B ⇌ 2C, if 2 moles of A, 3 moles of B and 2 moles of C are placed in a 2 L flask and
the equilibrium concentration of C is 0.5 mol/L. The equilibrium constant (KC) for the reaction is.....and please tell how you know that the reaction is going forward .. imean how to calculate the reaction quotient ???
In the reaction A + 2B ⇌ 2C, if 2 moles of A, 3 moles of B and 2 moles of C are placed in a 2 L flask and
the equilibrium concentration of C is 0.5 mol/L. The equilibrium constant (KC) for the reaction is.....and please tell how you know that the reaction is going forward .. imean how to calculate the reaction quotient ???
the equilibrium concentration of C is 0.5 mol/L. The equilibrium constant (KC) for the reaction is.....and please tell how you know that the reaction is going forward .. imean how to calculate the reaction quotient ???
physical chemistry
Last Activity: 3 Years ago
True or false when an electron in ground state of hydrogen atom is excited with an energy that is greayer than e2-e1 but less than e3-e1 the electron will get excited n=2
True or false when an electron in ground state of hydrogen atom is excited with an energy that is greayer than e2-e1 but less than e3-e1 the electron will get excited n=2
physical chemistry
Last Activity: 3 Years ago
18 19 gram mixture of na2co3 and nahco3 on heating gives 2.2 gram CO2 gas find the percent nahco3 (by mass) in mixture
18 19 gram mixture of na2co3 and nahco3 on heating gives 2.2 gram CO2 gas find the percent nahco3 (by mass) in mixture
physical chemistry
Last Activity: 4 Years ago