Q&A UPS II PDT kimi-'A'!

اَلسَّلاَمُ عَلَيْكُمْ وَرَحْمَةُ اللهِ وَبَرَكَاتُهُ

آللّهُمَ صَلّیۓِ ۈسَلّمْ عَلۓِ سَيّدنَآ مُحَمّدْ وَ عَلۓِ آلِ سَيّدنَآ مُحَمَّدٍ

forecast kimi-'A'! PDT utk esok khamis 2.2.12 9-10 am

Q1) PV=nRT cari Mr, mass dan density, partial pressure dalton's Law, compare ideal gas dan real gas

Q2) compare surface tension, compare amorphous dan crystalline solid. contoh sekali

Q3) ICE table kira Qc, Qp, Kc, Kp Kp=Kc(RT)n

Q4) Le Chatelier. predict direction. how to increase product

defination
1) boyle's law
2) Charles' Law
3) partial pressure dalton's Law
4) Boiling point
5) Le Chatelier

gud Luck sumer! buktikan kimi-'A'! itu M U D A H...! Insya Allah A

Jawapan UPS II PDT kimi-‘A’!

A1) a) V increase 10% = 28L     V₂ = 280 + 28 = 308L

     P₁V₁ = P₂V₂    P₂ = 2.28 atm

        T₁            T₂

b) i  Vapor pressure ------ refer notes

    ii  Hexane    reason : lower BP and weak IMF

c) P = nRT / V

       = 9.42 atm

A2) a) refer notes

       b) mol CO = 0.166

            PV = nRT

              Vco = 3.72L

           Density gas P = m/v

                                   = 2.9 gL^-1

     c) i  refer notes

         ii  amorphous solid : glass

             molecular crystal : sulphur

A3) a) refer notes

       b) i   Qc = [product] / [reactant]

                      = 17.58

                 Qc > Kc   equilibrium shift left

          ii    Kp = Kc (RT)^∆n

                      = 1.87 X 10³

mol	2SO2(g)     +     O2 (g)                 2SO3 (g)
Initial	2                      1                             0
Change	-2x                  -x                           +2x
Equilibrium	2-2x                 1-x                            2x

A4)     

Mol O₂  dissociated = 0.61            Mol O₂ at eqlb   =  0.39      Total mol = 2.39

Mol SO₂  at eqlb =  0.78               Mol SO₃  at eqlb =  1.22

% SO₃ at eqlb = 1.22 / 2.39 x 100% = 51.05%

b) i   shift left      PCl₃ decrease

    ii   shift left     PCl₃ decrease

Pesanan : Sila wat pembetulan...!!! hantar kepada pensyarah tutor masing2 pada RABU 8 Feb 2012

silalah bertawakkal kepada Allah... redha dan sabar... selalulah berani bertanya soalan kimi-'A'! kepada pensyarah dan berfikir..>!! Insya Allah kimi-'A'! itu M U D A H-----------------> A!