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when equimolar quantities of acetic acid and ethanol are at 25 C, 1/3 of acetic acid remains unreacted as shown by titration with standard alkali.Calculate concentration equilibrium constant. ...

cos2A+cos2B+cos2C+2cosAcosBcosC where ABC is a triangle ...

For an ideal gas, if the molar heat capacity varies as C = Cv + 3aT2 Find the equation of the process in terms of temperature T and volume V, where a is a constant. ...

Why do diatomic gases have 2 rotational degrees of freedom? If we consider the z-axis to be along the line joining their centres, the moment of inertia about x and y axes is same so kinetic energy along these axes is same (i. ...

in the case of the differential eq of all non-horizontal lines in a plane we take ax+by =1 and then differentiate it twice with respect to y , and in the case of all non-vertical lines in a plane we differentiate the above eq ...

Let a be the smallest +ve integer with the property as follows: there are distinct positive integers a1,a2,a3,a4,a5 such that g(x)=(x-a1)(x-a2)(x-a3)(x-a4)(x-a5) has at least `a` non zero coefficients find set of (a1,a2,a3,a4 ...

A football of mass m approaches at 10m/s and is kicked by the footballer such that it returns at 10√2 at an angle of 45 degrees from its initial direction! What is the magnitude of the impulse? ...

Two touching bars 1 and 2 are placed on an inclined plane forming an angle α with the horizontal. The masses of the bars are equal to m1 and m2, and the coefficients of friction between the inclined plane and these bars are ...

A wheel of radius R rolls without slipping with a speed v on a horiz road. When it is at a pt. A on the road , a small mud particle separates frm the wheel at its highest pt. and lands at pt. B on the road . Then (A) AB = v(R ...

3sin x4 + cos x4 =1 find the general solution ...

if f: R-R is a function satisfying the property f(2x+3) + f(2x+7) = 2 for all x belongs to R , then the period of f(x) is ...

The total energy of the electron in an atom is ...

Please explain me about the solubilities of hydroxides,fluorides,sulphates,carbonates,chlorides,oxides of Group 1 and 2 metals Is there some logic to remember them. Help!! ...

though C and H have difference in electronegativity....why is C-H bond is a purely covalent bond.... ...

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1) A rod of length l with thermally insulated lateral surface consists of material whose heat conductivity Coefficient varies with temperature as k=α/T, where a is a constant. The ends of the rod are kept at Temperatures T1 ...

*Image* Ans given to q1 is {b} Explain the function of reactants also... ...

A boat has a crew of 10 men of which 3 can row only on one side and 2 only on the other.In how many ways,can the crew be arranged?? ...

z has property that |z-5i|=1 find z1 with the property that |z-z1| is maximum Pls also if u can explain little bit.. ...

is the topic INSTANTANEOUS AXIS OF ROTATION in JEE syllabus?? ...

if y, = y+1 and y(0)=1 find value of y(ln2) ...

This question might seem silly but this is my doubt. we use mod. function for x2=9 i.e. x=±3 But if we just calculate the √9, we dont write ±3, though both +3 or -3 when squared equal 9. ...

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since the part tests must be coming now..i guess the first part test must be having mechanics in it this question had come in my fiitjee aits (or might be some phase test) *Image* there is a smooth rod(friction is absent on i ...

Two wheels of same masses M and radii R are joined coaxially so that the system can perform rolling motion on the ground.The system is released from the top of the inclined plane of inclination theta and height H.The system p ...

A particle is confined to rotate in a circular path with decresing linear speed.Then,which of the following is correct? (A)L vector(angular momentum) is conserved about the centre (B)only direction of angular momentum is cons ...

1.Find the number of positive unequal integral solutions of the equation a+b+c+d=20. 2.A five digit number divisible by 3 is to be formed using the number 0,1,2,3,4,5,without repetition.The total number of ways this can be do ...

Suppose a mass 'm' sticks to a rotating disc of mass M and radius R. I wanted to whether new I = (M+m)R2/2 or (MR2/2 + mR2) If second is correct then please give me an example in which first one is used. ...

CH2OH-CO-CHOH-CHOH-CHOH-CH2OH +HIO4→ ???? ( α D-Fructose) 1ST OF ALL...ISNT 5 MOLE HIO4 NEEDED??? 2ndly Predict the products.........plzzzz help!! :( ...

1.Let us define a recursion as: b1 = 1, bn = cos bn-1 Find:- limn→ ∞(infinity) bn a) does not exist. b) lies between 1 and 2. c) lies between 0 and1/2. d) lies between 1/2 and 1. ...