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For an ideal gas ____

For an exothermic reaction, what happens to the equilibrium constant if temperature is increased?

For an exothermic reaction, what happens to the equilibrium constant if temperature is incresed ?

For an equilibrium reaction, the rate constants for the forward and the backward reaction are 2.38 xx 10^(-4) and 8.15 xx 10^(-5)respectively . Calculate the equilibrium constant for the reaction.

For an equilibrium reaction K_(p) = 0.0260 at 25^(@)C and DeltaH = 32.4 kJ mol^(-1) . Calculate K_(p) at 37^(@)C.

For an equilibrium H_(2)O (s) hArrH_(2)O (l) which of the following statement is true:

For an endothermic reaction energy of activation is E_(a) and enthalpy of reaction is DeltaH (both in kJ "mol"^(-1) ) Minimum value of E_(a) will be

For an electron v= 300 ms^(-1) andcertaintyin velocityis 0.001 % whatis theuncertainty in position

For an electrophilic substitution reaction, the presence of a halogens atom in the benzene ring.

For an electron to have the same de Broglie wave length as that of a Deutron, its velocity should be times that Deutron

For an electron to have the same de Broglie wave length as that of a Deuteron, its velocity should be --- times that of Deuteron

For an e in a hydrogen atom, the wave function Psi is proportional toe^(-r//a_0) where a_0 as Bohr.s radius, what is the ratio of probability of finding the e^(-) at the nucleus to the probability of finding it at a_0, the wave function is Psi = 1/(sqrt(pi)) ((1)/(a_0))^(3/2) e^(-r//a_0)

For an aqueous solution of NH_(4)Cl, provethat [H_(3)O^(+)]=sqrt(K_(h)C).

For alkali metals, which one of the following trends is incorrect ?

For alkali metals, which one of the following trends is incorrec

For alkali metals, which one of the following trends is incorrect?

For alkali metal , which of the following trends is incorrect ?

For ag, Cp (JK^(-1mol^(-1) is given be 24+0.006 T//K. Calculate DeltaH (in KJ) if 3 mole of silver are raided from 27^(@)C to its meltiong point 927^(@)C under 1 atm pressure.

For the reaction at 298K:A_((g))+B_((g)) hArr C_((g)) + D_((g)) Delta H^(@) + 29.8kcal and Delta S^(@) = 100cal K^(-1). Find the value of equilibrium constant.

For Ag^(+)(aq) + 2NH_(3(aq)) harr Ag(NH_(3))_(2(aq))^(+) k = 1.7 xx 10^(7) at 25^(@)C, for this equilibrium state, which is correct?

For adsorption of a gas on a solid, the plot of log x/m vs log P is linear with slope equal to: (n being whole number )

For adiabatic expansion of an ideal gas

For acidic buffer pH and pK_a an same? Why ?

For adiabatic change ..........

For acetic acid and sodium acetate buffer, addition of which of the following increases the P^(H)?

For above transitions in hydrogen like atoms, select the incorrect relation(s).

For above transition in hydrogen like atoms, select the correct relations(s).

For a van der Waal's gas with a = 0.2463 atm lit^(2) mol^(-1) and b=0.01 lit mol^(-1) subjected to adiabatic free exapansion at an initial temperature of 650 K will show which of the following characterstics?

For a water gas reaction, C_((s)) + H_(2)O_((g)) hArr CO_((g)) + H_(2(g)) at 1000 K, the standard Gibb's energy change is -8.1 kJ mol^(-1). Calculate the value of equilibrium constant.

For a van der Waal's gas, determine Boyle Temperature (given a = 4.5 atmL^2 mol^(-2) , b = 0.9 L mol^(-1)and R = 0.082 L atm K^(-1)mol^(-1)]

For a system at equilibrium some changes are made which is reported by a graph (shown below). Changes has been made at constant temperature. Choose the correct options:

For a substance more internal energy is observed in [ same quantity ]

For a stable molecule, the value of bond order must be ……………….

For a spontaneous reaction, the DeltaG, equilibrium constant (K) and E_(cell)^(@) will be respectively,

For a solution the plot of osmotic pressure(pi )verses the concentration( c "in" mol L^(-1)) gives a straight line with slope 310 R where 'R' is the gas constant The temperature at which osmotic pressure measured is

For a series of indicators the following colours and pH range over which colour change takes place are as follows : Indicator W would be suitable for use in the determination of the concentration of acetic acid in white vinegar by base titration : (a)True (b) False

For a series of indicators the following colours and pH range over which colour change takes place are as follows : Indicator U could be used to distinguish between 0.1 M and 0.01 M solution of sulphuric acid : (a)True (b) False

For a series of indicators the following colours and pH range over which colour change takes place are as follows : Indicator X could be used to distinguish between the solution of ammonium chloride and sodium acetate solution : (a)True (b) False

For a sequential reaction. NH_(3) rightarrow N_(2) + H_(2) H_(2) + O_(2) rightarrow H_(2)O What will be the amount of water which will be obtained if 5 moles of NH_(3) is mixed with 3 moles of O_(2) and % yield of 1^(st) and 2^(nd) reaction is 50% and 80% respectively ?

For a series of indicators the following colours and pH range over which colour change takes place are as follows : Indicator V could be used to find the equivalence point for 0.1 M acetic acid and 0.1 M ammonium hydroxide solution : (a) True (b) False

For a series of indicators the following colours and pH range over which colour change takes place are as follows : Indicator Y could be used to distinguish between the solutions of ammonium chloride and sodium acetate solution : (a)True (b) False

For a sample of perfect gas when its pressure is changed isothermally from p_(i) to p_(f) , the entropy change is given by

For a sample of perfect gas when its pressure is changed isothermally from P_(i) to P_(f) the entropy change is given by

For a sample of perfect gas when its pressure is changed isothermally form p_(i) to p_(p) the entropy change is given by

For a salt AB_(2)(s) solution if Ionic product (I.P) gt K_("sp"),then precipitation will take place.

For a reversible reaction alphaA+betaBhArr^.cC+^.dD,the variation of K with temperature is given by log(K_(2))/(K_(1))=(-DeltaH^circ)/(2.303R)[(1)/T_(2)-(1)/T_(1)]then,

For a reversible reaction at 298 K, if the concentration of reactants is doubled, the value of equilibrium constant will be ………

For a reversible reaction aA+bBhArrcC+dD, the variation of K with temperature is given by log (K_(2))/(K_(1))=(-DeltaH^(@))/(2.303R) [(1)/(T_(2))-(1)/(T_(1))] then,

For a reversible reaction A underset(K_(2))overset(K_(1))(hArr) B rate constant K_(1) (forward) = 10^(15)e^(-(200)/(T)) and K_(2) (backward) = 10^(12)e^(-(200)/(T)). What is the value of (-Delta G^(@))/(2.303 RT) ?