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If sin-1x+sin-1y= frac{2pi}{3} , cos-1x–cos-1y= frac{pi}{3} , the number of ordered pairs (x, y) is ...
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The magnetic field due to a current carrying circular loop of radius 3 cm at a point on the axis at a distance of 4 cm from the centre is 54,,mu T . What will be its value at the centre of the loop ...
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what is the freezing pt of a aqueous sol. containing 5 % by mass urea,1% by massof KCl and 10% by mass glucose...(kfH20=1.86) a)290.2 K B)285.5K C)169.93K D)250K ...
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A sample of 20g of a compound (m.w=120)which is a non electrolyte is dissolved in 10g of ethanol.if the vapour press of the ethanol at the temp. used is 0.250 atm what is the vapour pressure os the ethanol above the sol. ? a) ...
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given that for a reaction of first order n,the integrated form of the rate equation is : k=(1/t(n-1))[1/(Cn-1) - 1/(C0n-1)] where c0 and c are the values of the reactant concentration at the start of time t ...what is the rel ...
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Half lihe is independent of the concentration of the reaction....After 10mins vol. of N2 gas is 10l and after complete reaction it is 50l ..hence rate const : a)(2.303/10)log 5 /min b)(2.303/10)log 1.25 c)(2.303/10)log 2 d)(2 ...
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In a reaction NH4NO2 → N2(g) + 2H2O (l) the volume of N2 after 20 mins and after a long time is 40ml and 70ml respectively ...the value of rate const is: a)(1/20)ln(7/4) /min b)(2.303/1200)log(7/3) /sec c)(1/20)log(7/3) /mi ...
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In a reaction NH4NO2 → N2(g) + 2H2O (l) the volume of N2 after 20 mins and after a long time is 40ml and 70ml respectively ...the value of rate const is: a)(1/20)ln(7/4) /min b)(2.303/1200)log(7/3) /sec c)(1/20)log(7/3) /mi ...
