71Q: In Solid PBr5, maximum number of d orbital(s) that take part in hybridization of P is X, then X is ?
Ans: 0
Q: No. of vibrational degrees of freedom of CO2 is ?
Q: Write tthe most appropriate structure of C3O2 ?
At 298K, the thermal expansion coefficient and the Isothermal compressibility of liquid water are \beta =2\times 10^{-4} \;\;\text{K}^{-1} and \kappa =4\times 10^{-6} \;\;\text{bar} respectively. Then, \left(\frac{\partial \text{U}}{\partial \text{V}}\right)_T for water at 300 K and P = 1.00 bar is :
a) 1.5 * 10^4 bar
b) 3 * 10^-4 bar
c) 6 * 10^-4 bar
d) 9 * 10^-4 bar
Q: In how many cases the entropy change is positive ,
SN1,SN2,SNi,E1,E2,E1cb ?
-
UP 0 DOWN 0 0 7
7 Answers
71
262since solid PBr5 exists as [PBr4 ]+ Br-
hence it is sp3 hybrid.
262in a linear molecule ,number of vibrational modes is 3N - 5, where N is the number of atoms in the molecule .
hence for CO2 , ans is 4
71For degree of freedom question, Do we have some more formulas like it in thermodynamics?. I didn't knew of any such formula.
71hahahh! Try the rest two in the first post.. they are really good and easy looking questions.