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The DeltaH_(t)^(@) for CO_(2)(g), CO(g) and H_(2)O (g) are -393.5, -110.5 and -241.8 kJ mol^(-1) respectively. The standard enthalpy change (in kJ) for the reaction. CO_(2)(g) + H_(2)(g) to CO(g) + H_(2)O(g) is

the DeltaH_(t)^(@)for CO_(2)(g) , CO(g) and H_(2)O(g) are -393.5 , -110.5 and -241.8 kJ mol ^(-1) respectively, the standed enthalpy change ( in kJ) for the reaction CO_(2)(g)+ H_(2)(g)to CO(g) + H_(2)O(g) is

The DeltaH_(f)^(@) of O_(3),CO_(3),NH_(3) and HI are 142.2, -393.3, -46.2 and +25.9 kJ per mol, respectively. The order of their increasing stabilities will be

The DeltaH_(f)^(@) for CO_(2)(g), CO(g) and H_(2)O(g) are - 393.5, - 110.5 and - 241.8 kJ mol^(-1) respectively. The standard enthalpy change (in kJ) for the reaction CO_(2)(g)+H_(2)(g)rarrCO(g)+H_(2)O(g) is

The DeltaH values for reactions of ,C(s) + 1/2 O_2 (g) to CO(g) DeltaH =-100 KJCO(g) + 1/2 O_2 (g) to CO_2 (g) DeltaH = 200 KJThe heat of reaction for C(s) + O_2 (g) to CO_2 (g)is

The DeltaH value of the reaction H_(2) + Cl_(2) hArr 2 HCl is -44.12 kcal . If E_(1) is the activation energy of the products , then for the above reaction

The DeltaH^(@), of thermal decomposition of BeCO_(3), MgCO_(3), SrCO_(3) and BaCO_(3) are in the order:

The DeltaH and DeltaS for a reaction at one atmospheric pressure are +30.558 kJ and 0.066 kJk^(-1) respectively. The temperature at which the free energy change will be zero and below of this temperature the nature of reaction would be

The Delta_(f) H^(@) (N_(2)O_(5), g) in kJ/mol on the basic of the following data is: {:(2NO(g)+O_(2)(g) rarr 2NO_(2)(g),,Delta_(r)H^(@)= -114" kJ/mol"),(4NO_(2)(g)+O_(2)(g) rarr 2N_(2)O_(5)(g),,Delta_(r)H^(@)= -102.6" kJ/mol"),(Delta_(f)H^(@) (NO, g)=90.2" kJ/mol",,):}

The Delta H^(theta) for the reaction 4S(s) + 6O_(2)(g) rarr 4 SO_(3)(g) is -1583.2kJ. Standard enthalpy of formation of sulphur trioxide is:

The dehydromination of 2-bromobutane gives CH_(3)CH=CHCH_(3). The product is

The dehydro halogenation of neopentyle bromide with alco.KOH mainly given:

The dehydrohalogenation of neopentyl bromide with alcoholic KOH mainly gives

The dehydration yield of cyclohexanol of cyclohexene is 75%. The yeild obtained when 100 g of cyclohexanol is dehydrated will be

The dehydration reaction is represented by :

The dehydration of neo=pentanol gives mainly:

The dehydration of neopentanol gives mainly:

The dehydration of 2-methyl butanol with conc. H_(2)SO_(4) gives

The dehalogenation of vicinal dihalides with zinc dust gives :

The dehydration of alcohol is an example of …………………….. .

The dehydration of alcohols to form ethers in presence of concentrated acid follows:

The degreen of crystallinity of which of the following is highest

The degree of polarity of a covalent bond is given by the dipole moment (mu). Identify the incorrect order of dipole moment in the following.

The degree of unsaturation of following compound C_(8)H_(12)O, C_(3)H_(5)N, C_(4)H_(8)O are respectively :

The degree of ionization of HF in 1.00 m aqueous solution is (freezing = 1.86^(@)C) is :

The degree of ionization of 0.2 m weak acid HX is 0.3. If the K_(f) for water = 1.85. What will be the freezing point of solution ?

The degree of ionization increases

The degree of hydrolysis of a salt of weak acid and weak base in its 0.1 M solutionis 0.2 M, the precentage hydrolysis of the salt should be

The degree of hydrolysis of a salt of weak acid and strong base is = 0.5. The equation to be used to calculate the accurate value of the degree of hydrolysis (h) is

The degree of hydrolysis in hydrolic equilibrium A^(-) + H_(2)O hArr HA + OH^(-) at salt concentration of 0.001 M is (K_(1) = 1 xx 10^(-5))

The degree of hardness of water is usually expressedin terms of

The degreeof hardness of water is usually expressed in terms of

The degree of halode in isobutyl chloride is :

The degree of dissociationof water is 1.8 xx10^(-9) at 298 K . Calculatetheionization constant and Ionic product of water at 298 K .

The degree of dissociation ofPCl_5 (alpha) obeying the equiliberium, PCl_5 ⇌ PCl_3 + Cl_2is approximately realted to the pressure at equilibrium by :

The degree of dissociation of water at 25^(@)C is 1.9 xx 10^(-7)% and density of 1.0 gm^(-3). The ionic constant for water is

The degree of dissociation of water in a 0.1 M aqueous solution of HCl ata certain temperature t^(@)C is 3.6 xx 10^(-15). The temperature t must be : [density of water at t^(@)C = 1 gm//mL.]

The degree of dissociation of Ca(NO_(3))_(2) in a dilute aqueous solution containing 7g of the salt per 100g of water at 100^(@)C is 70 per cent. If the vapour pressure of water at 100^(@)C is 760mm, calculate the vapour pressure of the solution.

The degree of dissociation of N_2O_4 according to the equation N_2O_4 iff 2NO_2 at 70^@C and 1 atm is 65.6%. Calculate the apparent mol. wt. of N_2O_4under the given conditions.

The degree of dissociation of dinitrogen tetroxide N_(2)O_(4) (g) to 2NO_(2)(g) atature T and total pressure P is alpha. Which one of the following is the correct expression for the equilibrium constant (K_(p)) at this temperature ?

The degree of dissociation of dinitrogen tetroxide N_(2)O_(4)(g)rarr 2NO_(2)(g)at temperature T and total pressure P is alpha. Which one of the following expressions is correct for the equilibrium constant at this temperature ?

The degree of dissociation of acetic acid in 0.1 M solution is 0.04 . Calculate K_a for acetic acid. Where alpha is the degree of dissociation,C is the concentrationof the acid in moles/ lit.

The degree of dissociation of an electrolyte does not depend on

The degree of dissociation of an electrolyte in aqueous solution depends on A) Temperature B) Concentration of the electrolyte C) Nature of the electrolyt

The degree of dissociation of 100 mL of pure water at 25^(@)C is

The degree of dissociation of 0.1 M weak acid HA is 0.5%. If 2 mL of 1.0MHA solution is diluted to 32 mL the degree of dissociation of acid and H_(3)O^(+)ion concentration in the resulting solution will be respectively

The degree of dissociation of 0.1 M HCN solution is 0.01%. Its ionisation constant would be

The degree of dissociation is 0.4 at 400 K and 1 atm for the gaseous reactionPCl_5 iff PCl_5 + Cl_2Assuming ideal behaviour of all the gases, calculate the density of equilibrium mixture at 400 K and 1 atm.

The degree of dissociation in a weak electrolytic increases