Recently Active Physical Chemistry Questions

Which one has greater solubility and why?? a) LiCl b) KCl ...

*Image* PLEASE guys.... cooperate with the picture !!.................. ...

For non-zero value of force of attraction between gas molecules for large volume, gas equation will be ------ ?? my ans is PV = nRT - n2a/V (i took b negligible as its large volume.. ) plz ...

in haber process 30 litres of dihydrogen and 30 litres of dinitrogen were taken for reaction , which yielded only 50% of the expected product. what will be the composition of gaseous under the aforesaid condition in the end & ...

Can anyone explain the effect of adding an inert gas to an equilibrium mixture? ...

A blown up balloon has a volume of 500ml at 278 K.The balloon is distended to its maximum stretching capacity.Determine the min temp above which it will brust. ...

water vapour and steam both have the same amount heat present in tehm as latent heat . But , they don't cause the smae amoutn fo ahrm . WHY? might be simple yet useful I thik. ...

5.2g of a limestone was dissolved in dilute HCl and the solution was made up to 1 dm3. 25cm3 of this solution was treated with ammonium oxalate. The resulting ppt. of calcium oxalate was titrated against 0.111N KMnO4 in acidi ...

calcualete degree of dissociation of phosgen if 2g of it is heated at 500C to occupy 1.985L at 1 atm. ...

50mL hydrocarbon having 85.7% Carbon at STP on combustio ngives0.37 g CO2 ,0.142g of H2O and unknown qty. of methane.Determine molecular formula of hydrocarbon ...

An element X forms iodide XI3 and chloride XCl3.The iodide is quantitavely converted to the chloride when heated in stream of chlorine. 2XI3+3Cl2---->2XCl3+3I2.If 0.5 g of XI3 is treated ,0.2360g XCL3 obtai ...

what is molarity of sodium hydroxide solution which is 15.2% NaOH by wt.The specific gravity of solution is 1.12g/mL ...

In the given reaction at 300K C6H6 + 15/2O2---------->6CO2 + 3H2O enthalpy= -3271kJ What is change in the internal for the combustion of 1.5 mole of benzene at 300K? a)-3267. ...

What mass of Cu2S and CuS will be produced by the reaction of 10g copper and 4g sulphur leaving no Cu or S. ...

what is vapour density of a mixture ...

A mixture of AgCl and AgI is heated in a current of chlorine gas,thereby converting AgI into AgCl .This conversion causes a loss of 60% of original weight.Find % of chlorine in the mixture ...

An element X reacts with hydrogen leading to formation of a class of compounds that is analogous to hydrocarbons.5g of X forms 5.628g of a mixture of two compounds of X(XH4 and X2H6)in the molar ratio 2:1.Determine molar mass ...

What mass of Cu2S and CuS will be produced by reaction of 10g Cu and 4g S leaving no Cu or S........... ...

A catalyst a)increases the average kinetic energy of the reacting molecules b)decreases the activation energy c)alters the reaction mechanism d)increases the frequency of collision of reacting species ...

The rate constant of a first order reaction depends on a)concentration of reaction b)concentration of product c)time d)temperature ...

why the temp of liquid will fall during evaporation of the liquid??? actually ,,, is it all true that the temp will fall ??? ...

Kindly explain the concept of dissociation of polyprotic acids. ...

pH of Aquous solution of HCl is 6.5 Find the [Cl -] ...

what is a nodal plane ...

Crystalline solids are Anistropic i.e have different values in different directions for various properties. Why????? ...

how is hydrogen bonding responsible for the anamolous expansion of water???? plz explain properly n in details...... ...

how to dtermine equivalent weight of an element undergoing disproportionate reaction ???? ...

1 M soln of a weak base BOH is only 0.5% ionised. If 2 ml 1 M soln of BOH is mixed with 30ml water, the degree of dissociation of the base in the resulting soln and H+ ion conc. of the soln will be ??? a) 0.02 and ...

explain kirchoff's equation related to chemistry ...

A 0.127g of unsaturated oil was treated with 25mL of 0.1M ICl solution.The unreacted ICl was then treated with excess of KI.Liberatd iodine reqd.40mL 0.1M hypo solution.Determine mass of I2 that would have been reqd with 100g ...