STD 7 GUJARATI CH 11 SEM 2

7/12 + 11/12 = 3/2

(5) / (3 ^ (2) 7 ^ (2)) + (9) / (7 ^ (2) 11 ^ (2)) + (13) / (11 ^ (2) 15 ^ (2)) + .... oo

If |x+2|lt=9 then x in (-7, 11) b. x in [-11 ,7] c. x in (-oo,7)uu(11 ,oo) d. x in (-oo,-7)uu[11 ,oo)

7 le ((3x + 11))/(2) le 11

Two equal volume flasks cotaining equal masses of H_(2) and CH_(4) are at 100 K and 200 K , repectively. The molecular diameter of CH_(4) is twice that of H_(2) . ( i ) Which of the following statement about Z_(1) (number of collisions per molecule per cm^(3) per second) is true? ( a ) Z_(11) of H_(2)=2Z_(1) of CH_(4) ( b ) Z_(11) of H_(2)=4Z_(1) of CH_(4) ( c ) Z_(11) of H_(2)=Z_(1) of CH_(4) ( d ) Z_(11) of H_(2)=8Z_(1) of CH_(4) ( ii ) Which of the following statement about Z_(11) (number of bimolecular collisions per cm^(3) per second) is true? ( a ) Z_(1) of H_(2)=4Z_(11) of CH_(4) ( b ) Z_(11) of H_(2)=8Z_(11) of CH_(4) ( c ) Z_(1) of H_(2)=16Z_(11) of CH_(4) ( d ) Z_(1) of H_(2)=32Z_(11) of CH_(4)

A common factor of (13^7 + 11^7) and (13^5 + 11^5) is :

2 + 4 + 7 + 11 + 16 + .... to n term =

If ^(k+5)P_(k+1)=(11(k-1))/(2)*k+3P_(k)P_(k) then the values of k are 7 and 11 b.6 and 7c.2 and 11 d.2 and 6