11. The graphs between P &T at constant volume (V) are Called____

1) Isobars 2) isochores 3)Isotherms 4) iso electrons

12. I atm=

1)76cm of Hg 2) 760mm of Hg 3) 1.01325x105 N/m2 4)all

13.The Energy of hydrogen bonding varies between____

1)10 To 100 k.j/mole 2) 100 to 1000k.j/mole 3) 1-2 k.j/mole 4) 100 to 200 k.j/mole

14 Isotherms are graphs plots between____

1)P and T at constant ‘v’ 2) P and V at constant ‘T’ 3)V and T at constant P 4) P and m at constant T

15. Ideal gas equation is___

1)PT=nvR 2) PV=nRT 3)PV/T =nR 4) both 2 and 3

16 The number of molecules present in one mole of any gas is ___

1) 60.23x1023 2)0.6023x1023 3)6.023x1023 4)6.023x10-23

17 The universal gas constant ‘R’ value in calories is

1)0.0821 2) 8.314x107 3)1.987 4)8.314

18 The spontaneous mixing of gases against gravity to from homogenous mixture is known as____

1)osmosis 2 )eiffusion 3) diffusion 4)collision

19 The mathematical equation for graham’s law _____

1) r1r 2

=¿ √d 2/d1 2)r1r 2

=√d1/d 2 3)r 2r1

=√d2/d 1 4)r1r 2

=d 2d 1

20. Dipole-Dipole intraction energy between stationary polar molecules is proportional to____

1)1r 6

2)1r5

3)1r 4

4)1r3

KEY1 2 3 4 5 6 7 8 9 102 4 1 2 2 3 3 3 1 4