Which of following have positive entropy :
1)`H_(2)O(l)rarr H_(2)O`(vap.)
2)`N_(2)(10atm)rarr N_(2)(1atm)`
3) Melting of Ice
4)All

Which of the followingk is true for the process H_(2) O (s) = H_(2) O (l) at 0^(@)C and 1 atm?

Which of the following is true for a reaction H_(2)O(l)toH_(2)O(g) at 100^(@)C , 1 atm. Pressure

Predict the sign of DeltaS for each of the following process: a. O_(2)(g) rarr 2O(g) b. N_(2)(g) +3H_(2)(g) rarr 2NH_(3)(g) c. C(s) +H_(2)O(l) rarr CO(g) +H_(2)(g) d. Br_(2)(l) rarr Br_(2)(g) e. N_(2)(g, 10 atm) rarr N_(2)(g,1atm) f. Desalination of water. g. Devitrification of glass h. Hard boiling og an egg i. C(s, "graphite") rarr C(s, "diamond")

Classify the following redox reactions. N_(2)+O_(2) rarr 2NO NaH+H_(2)O rarr NaOH+H_(2)

Which of the following reactions is an example of second order reaction (A) 2H_(2)O_(2)rarr2H_(2)O+O_(2) (B) SO_(2)Cl_(2)rarr SO_(2)+Cl_(2) (C) 2N_(2)O_(5)rarr2N_(2)O_(4)+O_(2) (D) 2N_(2)O rarr2N_(2)+O_(2)

Complete the following reactions (i) O_(2)^(2-)+H_(2)O rarr (ii) O_(2)^(-) +H_(2)O rarr

Find the heat of formation of ethyl alcohol for following data C(s) +O_(2)(g) rarr CO_(2)(g) DeltaH =- 94 kcal H_(2)(g) +1//2O_(2)(g) rarr H_(2)O(l), DeltaH =- 68 kcal C_(2)H_(5)OH(l)+3O_(2)(g) rarr 2CO_(2)(g) +3H_(2)O(l) DeltaH =- 327 kcal