Tf  for irreversible is more bcos a reversible process is infinitesimally slow process &each point ia in equillibrium. There will be slight change in Tf.

in irr. temp. will increase with inc. in VOLUME.

P=Po (Xsolvent)

X=(850/18)/(850/18 + 50/60)

 

=>   P=23.3

if u get into the regular classes of vmc that will be best.

otherwise for self study do concepts of physics by HCV

CHEM. by RC MUKHERJEE & maths by A DAS GUPTA.

 

someone had told me that it requires very very good art    & 

u will be given 4 choices {as per last to last year} to draw any 1 of them.

remember that all of them were 3- dimensional.

 

All of u r answering amphoteric not amphiprotic..

 

e.g. {HSO4-,H2PO4-&H2PO3-} this set is amphiprotic but

 

{H2O,H2PO2-,HPO3 ^2-

Cp={5R/2(n1)+7R/2(n2)}/{n1+n2}

Cv={3R/2(n1)+5R/2(n2)}/{n1+n2}

&Cp/Cv=1.5

=>  n1/n2=1

i think its absolutely right.

let tangent be    bxcost+aysint=ab  (parametric form)

m=2                        => -bcost/asint=2

it will pass thru (-2,0)

=>a=-2cost &ab=-8costsint 

max value=4