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A solution is a mixture of 0.05 M NaCl and 0.05 M NaI. The conc. of iodide ion when AgCl just starts precipitating is equal to ( Ksp(AgCl)=10-10; Ksp(AgI)=4*10-16) ...
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In decimolar solution, CH3COOH is ionised to the extent of 1.3%. If log1.3=0.11, what is the pH of the solution? ...
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The equilibrium constant Kp for the reaction PCl5→PCl3+Cl2 is 1.6 at 200°C. The pressure at which PCl5 will be 50% dissociated at 200°C is ...
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In what manner will increase of pressure affect the following equation? C(s)+H2O(g) → CO(g)+H2(g) ...
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One mole of a non-ideal gas undergoes a change of state (2 atm, 3 L, 95 K)→(4 atm, 5 L, 245 K) with a change in internal energy, ΔU=30 L atm. The change in enthalpy(ΔH) of the process in L atm is ...
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The correct expression relating molality(m), molarity(M), density(d), and molar mass(M2) of solute is ...
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Equal weights of phosphorus and oxygen combine to form a mixture of P4O6 and P4O10. Both reactants are exhausted. The mole ratio of P4O6:P4O10 in the products is ...
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A point charge is placed at ne of the vertex of the cube.What is the total flux through the cube ? ...
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A particle is moving according to the equation X = 3 (sin(2t+λ) + cos(2t+λ)).What is its amplitude ? ...
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The kinetic energy and the potential energy of a particle performing SHM will be same when ...
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Thre discs A B and C having radii 2m , 4m and 6m are coated with carbon black on their surface.The wavlength corresponding to the maximum intensity are 300nm,400nm and 500nm respectively.The power emitted is maximum for ...
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Which of the following law states that "good absorbers of heat are good emitters" ...
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During an adiabatic process the pressure of a gas is found to be proportional to the cube of temperature of the gas.The Cp/Cv of the gas is ...
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A solid X+Y- has a bcc structure. If the distance of closest approach between the the two atoms is 173 pm, the edge length of the cell is ...
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The ratio between the root mean square velocity of H2 at 50 K and that of O2 at 800 K is ...
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The set of all real numbers x for which x2-|x+2|+x>0, is ...
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Find the area bounded by the curves 2|x|+3|y|=6 ...
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Let f(x) be a function such that f(x), f'(x) and f''(x) are in GP, then function f(x) is ...
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f(θ)=sinθ(sinθ+sin3θ). Then f(θ) ...
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1 ∫ (1-x)/1+x) dx= 0 ...
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Consider an infinite geometric series with first term a and common ratio r. If its sum is 4 and second term is 3/4, then a= ...
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If x+y=k is a normal to y2=12x then k is ...
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For all complex number Z1, Z2 satisfying |Z1|=12 and |Z2-3-4i|=5, the minimum value of |Z1-Z2| is ...
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If the line x-1=0 is the directrix of the parabola y2-kx+8=0, then one of the values of k is ...
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The slope of the focal chords of the parabola y2=16x which are tangents to the circle (x-6)2+y2=2 are ...
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If a, b and c are unit coplanar vectors, then the scalar triple product [2a-b 2b-c 2c-a]= ...
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coefficient of x24 in (1+x2)12(1+x12)(1+x24) ...
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The number of integral values of k for which the equation 7cosx+5sinx=2k+1 has a solution is ...
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if a=i+j+k, a.b=1 and aXb=j-k, then b is ...
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Equation of circle touching the line |x-1|+|y-3|=8 will be ...
asked2009-04-15 21:12:47