Std-10 Most Imp Ch 1 Gseb L-12 રસાયણિક પ્રક્રિયાઑ અને સમીકરણ

The solubility of CH_(3)COOAg in a buffer solution with pH = 4 , whose K_(sp) = 10^(-12) and K_(a) = (10^(-4))/(3) is

Suppose the line, L_(1) has equation 10x-12y=-17." The line "L_(2)"intersect "L_(1)" at "((1)/(2),(11)/(6)) and is perpendicular to L_(1). Find the abscissa of the point on L_(2) whose ordinate is (1)/(30).

Rate constant k = 1.2 xx 10^(3) mol^(-1) L s^(-1) and E_(a) = 2.0 xx 10^(2) kJ mol^(-1) . When T rarr oo :

CH_4 (gas) is taken at (0.2)/(1.01325) atm pressure. Density of gas is 1.44 g//l and most probable speed is x xx10^2m//s , in the given condition. The value of x is:

If 1.0 kcal of heat is added to 1.2 L of O_(2) in a cyclinder at constant pressure of 1 atm, the volume increases to 1.5L . Calculate Delta U and Delta H of the process. (1L-atm=100J)

The heat librerated on complete combustion of 1 mole of CH_(4) gas to CO_(2)(g) and H_(2)O(l) is 890 kJ. Calculate the heat evolved by 2.4 L of CH_(4) on complete combustion.

Which oxide produces the most acidic solution when 0.1 mol is added to 1L of H_(2)O ?

The tops of two poles of height 16m and 10m are connected by a wire of length l metres.If the wire makes an angle of 30o with the horizontal,then l=(a)26 (b) 16 (c) 12 (d) 10

The electric field of an electromagnetic wave is given by E = (50 N C ^(-1)) sin omega (t - x//c). The energy contained in a cylinder of cross section 10 cm ^(2) and length l /10 along the x-axis is 5.5 xx 10 ^(-12)J. The vlaue of l is

The K_(sp) of AgCrO_(4) is 1.1xx10^(-12) at 298K . The solubility (in mol L^(-1) ) of Ag_(2)CrO_(4) in a 0.1M AgNO_(3) solution is