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explain why cp is always greater than cv????

_{3}PO_{4}is titrated with 0.1M NaOH solution calculate ph of solution if voulme of NaOH used is 50 mlwhy oxygen is paramagnetic in nature by molecular orbital theory

what is physical equilibrium? Give two example

Equal volumes of two solutions pH=2 and pH=4 are mixed together.Calculate the pH of the resulting solution?

NO3- , NO2- NO2. and NO2+

_{}2 NO(g) + Br_{2}(g) . If P_{Br2}_{}= P/9 at equilibrium and P is total pressure, the ratio of Kp/P is equal to(The ones marked in blue, those steps I couldn't understand , please explain it )plz answer me soon and explain

the value of Kc = 4.24 at 800K for the reaction

CO(g) + H2O(g) CO2(g) + H2(g)

Calculate the equilibrium concentration of CO2 ,H2O ,CO , H2 at 800K ,if only CO and H2O are pesent initially at concentration of 0.10M each.

What is meant by "weighing by transfer"?when is this used?answer with respect to basic laboratory techniques.

100 ml of 0.1 N NaOH is mixed with 100 ml of 0.1 N H

_{2}SO_{4}.The pH of the resultant solution is??In a closed system:A

_{(s)}⇌2B_{(g)+}3C_{(g)}if the partial pressure of C is doubled then partial pressure of B will be??what is the formula and basicity of hydrated oxalic acid and anhydrous oxalic acid?

How CH3COONa is a strong electrolyte?

What is the pH of 10

^{-8}M HCl solution?At 90'C, pure water has [H30

^{+}]=10^{-6}mole/liter. the value of k_{W}at 90'C is:^{-6}^{-8}^{-12}^{-14}what type of substance is used for preparing standard solution?

_{5}is 50% dissociated at an equilibrium pressure of 4 atm. At what pressure it would dissociate to the extent of 80% at the same temperature:-a) 0.05 atm

b) 0.60 atm

c) 0.75 atm

d) 2.50 atm

Kindly answer sir/mam.

Question -The pH of 0.1 M monobasic acid is 4.50. Calculate the concentration of H+, A- and HA. Also determine the values of ka and pka of mono basic acid._{4}(g) is attained by mixing equal moles of A and B in a one litre vessel. Then at equilibrium:- (Kindly explain the answer also)a) [A] = [B]

b) [A] > [B]

c) [A] < [B]

d) [AB

_{4}] > [A]Kindly answer sir/mam.

a3b

a3b2

a2b6

a3b4

explain

The pH of a solution obtained by mixing 100 ml of 0.2 M CH

_{3}COOH with 100 ml of 0.2 M NaOH will be??(given pK_{a}for CH_{3}COOH =4.74 and log 2=0.301)_{p}) are related as ${\mathrm{K}}_{\mathrm{p}}=\frac{4{\mathrm{\alpha}}^{2}\mathrm{P}}{\left(1-{\mathrm{\alpha}}^{2}\right)}$?(1) ${\mathrm{N}}_{2}{\mathrm{O}}_{4}\left(\mathrm{g}\right)\rightleftharpoons 2{\mathrm{NO}}_{2}\left(\mathrm{g}\right)$

(2) ${\mathrm{H}}_{2}\left(\mathrm{g}\right)+{\mathrm{I}}_{2}\left(\mathrm{g}\right)\rightleftharpoons 2\mathrm{HI}\left(\mathrm{g}\right)$

(3) ${\mathrm{N}}_{2}\left(\mathrm{g}\right)+3{\mathrm{H}}_{2}\left(\mathrm{g}\right)\rightleftharpoons 2{\mathrm{NH}}_{3}\left(\mathrm{g}\right)$

(4) ${\mathrm{PCl}}_{3}\left(\mathrm{g}\right)+{\mathrm{Cl}}_{2}\left(\mathrm{g}\right)\rightleftharpoons {\mathrm{PCl}}_{5}\left(\mathrm{g}\right)$

N${H}_{4}$HS(s) $\rightleftharpoons $N${H}_{3}$(g) + ${H}_{2}$S(g) ; $\u25b3$H = +ve

${S}_{1}$ : On increase in temperature, equilibrium pressure of ammonia increases.

${S}_{2}$ : On increase in volume of container at constant temperature, equilibrium pressure of ammonia

increases.

${S}_{3}$ : On increase in mass of N${H}_{4}$HS(s) in the container at constant temperature, equilibrium pressure of

ammonia increases.

K

_{sp}of Mg(OH)_{2 }is 4.0×10^{-12}.The number of moles of Mg^{2+}ions in one litre of its saturated solution in 0.1 M NaOH is??why are standard solutions always prepared in volumetric flask?

2SO2 + O2 ------> 2SO3

has a value of 278 at a particular temperature. What is the value of the equilibrium constant for the reaction at the same temperature

SO3 -----> SO2+ ½O2

Q] One mole of N

_{2}O_{4}(g) at 300K is kept in a closed container under one atmosphere. It is heated to 600K when 20% by mass of N_{2}O_{4}(g) decomposes to NO_{2}(g). The resultant pressure is??can solid NaOH be used to prepare its standard solution?

If the value of Kc is 3, the percentage by mass of iso-butanein the equilibriummixture would be:-

a) 75%

b) 90%

c) 30%

d) 60%

Kindly answer sir/mam.

a)10

^{-3 }b)10^{-5}c)10

^{-7}d)10^{-9}increase

decrease

unchanged

none

calculate simultaneous solubility of AgCNS and AgBr in a solution of water.Ksp AgCNS=1.2*10

^{-12},Ksp AgBr=5*10^{-13}CH3COCH3 = CH3CH3 + CO initial pressure of CH3COCH3 is 100mm when equilibrium is established mole fraction of CO is 1/3 hence Kp is

( ans= 50 mm )

49) Which oxychloride has maximum pH?

a) NaClO b) NaClO

_{2}c) NaClO_{3}d) NaClO_{4}88) A infinite dilution the percentage ionisation for both the strong and weak electrolyes is:

a) 1% b)20% c)50% d) 100%

H

_{2}(g)+I_{2}(g)⇌ 2HI(g), K_{p}=0.35 at 298 KIf

^{P}H_{2}=0.10 atm,^{P}I_{2}=0.10 atm and^{P}HI=0.80 atm at 298 K,has equilibrium been reached.If not state on which side of the equilibrium the system is??the value of delta G for the phosphorylation of glucose in glycolysis is 13.8 kj/mol. Find the value of Kc at 298K?

calculate the enthalpy change for the reaction :-

H2(g) + Cl2(g) → 2HCL(g)

given that the bond energies H-H,Cl-Cl,and H-Cl bonds are 433, 244 and 431kj/ mol respectively.

The solubility product constant of Ag

_{2}CrO_{4}and AgBr are 1.1 × 10^{–12}and 5.0 × 10^{–13}respectively. Calculate the ratio of the molarities of their saturated solutions.â€‹Q1. When Cl

_{2}O_{7}is heated to temperature T, it dissociates as Cl_{2}O_{7}(g) $\underset{}{\rightleftharpoons}$ Cl_{2}O_{5}(g) + O_{2}(g); K_{c1}. At the same time, Cl_{2}O_{5}also decomposes as : Cl_{2}O_{5}(g) $\underset{}{\rightleftharpoons}$Cl_{2}O(g) + 2O_{2}(g) +2O_{2}(g) ; K_{c2}. If initially 5 moles of Cl_{2}O_{7}are taken in a 1.0 litre flask and allowed to attain equilibrium, concentrations of Cl_{2}O_{5}and O_{2}were found to be 0.5M and 2M respectively. Then, identify the CORRECT option :(A) K

_{c1}= 0.25 M (B) [Cl_{2}O_{7}]_{eq}= 4M (C) [Cl_{2}O]_{eq}= 0.5M (D) K_{c2}= 2M^{2}H2(g)+I2(g)2HI(g)

at 720K is 48. What is the value of the equilibrium constant for the reaction

1/2H2(g)+1/2I2(g)HI(g)

At temperature T, a compound AB

_{2}(g) diassociates according to the reaction :2AB

_{2}(g) [reverisble sign ] 2AB(g) + B_{2}.with degree of dissociation, x, which is small compared to unity. Deduce the expression for x in terms of equillibrium constant K

_{p}and the total pressure.Is SnCl_{4}a Lewis acid or a base???Arrange the following Bronsted Acids in increasing acidic strength,Give Reason for your choice :1)HCl,HBr ,HI,CH_{3}COOH,HCO_{3},H_{2}O2)HCOOH,C_{6}H_{5}COOH,CH_{3}COOHThe equilibrium constants K

_{P1}and K_{P2}for the reactions X↔2Y and Z↔P +Q, respectively are in the ratio of 1 : 9. If the degree of dissociation of X and Z be equal then the ratio of total pressure at these equilibria isThe pH of 0.10 M KCN solution at 25 degre sol , for HCN , Ka =6.2*10^-10

1 H2O , H2S ,H2Se , H2Te

2 SiH4 , PH3, H2S, HCL

Calculate the degree of ionization of 0.01M solution of HCN.Ka = 4.8 X 10-10.Also calculate H

^{+ }ion concentration of the solution^{}^{}What is an evacuated vessel? [From Comprehensive Chemistry Pg.-370]

When 0.1 mole of ammonia is dissolved in sufficient water to make 1 litre of solution.The solution is found to have a hydroxide ion concentration of 1.34×10

^{-3}.The dissociaton constant of ammonia is??What is the pH of 0.1M NaHCO

_{3}? K_{1}= 4.5 x 10^{-7 }, K_{2}= 4.5 x 10^{-11}for carbonic Acids?Ksp(BaSO4)= 1.5*10-9. find solubility in a)pure water b)0.1 M BaCl2 solution

reached, concentration of C was thrice the equilibrium concentration of B. Calculate KC.

1)- What is the pH of10

^{-8}(N) HCl?CO (g) + 1/2 O2 equlibrium equal is Co2 (g) is

what is meant by "weighing by transfer"?when is this used?

an excess of agno3 is added to 100 ml of a 0.01 M solution of [cr(h2o)4cl2]cl.the number of agcl precipated would be:

is this question based on common ion effect

a)mutual opposite reaction undergoes

b)concentration of reactants and resulting products are equal

c)velocity of mutual reaction become equal

d)temp of mutual opposite reactions become equal

plz give answer with explanation ,

ASAP.The equillibrium , SO

_{2}Cl_{2}(g) ---> SO_{2}(g) + Cl_{2}(g) is attained at 25^{.}C in a closed container and an inert gas, helium is introduces. Which of the following statement(s) is / are correct ?(A) Concentrations of SO

_{2}, Cl_{2}& SO_{2}Cl_{2}are changed.(B) No effect on equillibrium.

(C) Concentration of SO

_{2}is reduced.(D) K

_{p}of the reaction is increasing.the equilibrium constant kp= 2.9*10^ -5 atm^3. the total pressure of gases at equilibrium when 1.0 mole of reactant was heated will be

what is the conjugate base of CN

^{- }The answer is 1.

plz explain me ostwald dilution law

All reactions which have chemical disintegration

a) Is reversible b) Is reversible and endothermic c) Is exothermic 4) Is reversible or Irreversible and endothermic or exothermic

plz give answer with explanation ,

ASAP.calculate the pH of 1.0 X 10^ -8 M solution of HCL ?