A substance A has a normal melting point of 250 K of 250 K and normal boiling point 300 K. Using this information and other information given below calculate DeltaS_("sublimation" ) " at " 250 K["in cal"//"K-mole"] Information -1:Entropy of vapourisation at 300 K is 21 cal/K-mole Information-2 : Latest heat of fusion at 250 K is 2.5 kcal/mole Information -3: C_(p) is liquidA and gaseousA is 20 cal//"K mole" "and"10 "cal"//K-"mole" Information -4: In (6)/(3)=0.18 [Round off your answer to nearest integer.]

A substance A has a normal melting point of 250 K of 250 K and normal

1.	A substance A has a normal melting point of 250 K of 250 K and normal boiling point 300 K. Using this information and other information given below calculate DeltaS_("sublimation" ) " at " 250 K["in cal"//"K-mole"] Information -1:Entropy of vapourisation at 300 K is 21 cal/K-mole Information-2 : Latest heat of fusion at 250 K is 2.5 kcal/mole Information -3: C_(p) is liquidA and gaseousA is 20 cal//"K mole" "and"10 "cal"//K-"mole" Information -4: In (6)/(3)=0.18 [Round off your answer to nearest integer.]
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