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Na(2)SO(4).10H(2)O(s)hArrNa(2)SO(4).5H(2...


`Na_(2)SO_(4).10H_(2)O(s)hArrNa_(2)SO_(4).5H_(2)O(g) K_(P)=2.43xx10^(-8)` atm^(5) incorrect statement is-

A

`CaCI_(2)(s)` acts as drying agent under given condition.

B

`CaCI_(2)(s)` acts as hydroscopic substance given condition.

C

`CaCI_(2)6H_(2)O(s)` acts as efflorescent substance.

D

Mass of `CaCI_(2).6H_(2)O(s)` increases dueto some reaction.

Text Solution

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The correct Answer is:
C
Equilibrium partial pressure of `H_(2)O(g)=(24xx10^(-18))=2xx10^(-3)atm=1.52` torr
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(a) CuSO_(4).5H_(2)O(s)hArrCuSO_(4).3H_(2)O(s)+2H_(2)O(g) K_(p)=4xx10^(-4)atm^(2) (b) Na_(2)SO_(4).10H_(2)O(s)hArrNa_(2)SO_(4).5H_(2)O(s)+5H_(2)O(g) K_(p)=2.43xx10^(-8) atm^(5) (c) Na_(2)S_(2)O_(3).5H_(2)O(s)hArrNa_(2)S_(2)O_(3).2H_(2)O(s)+3H_(2)O(g) K_(p)=6.4xx10^(-5) atm^(3) What is order of vapour pressure and relative humidity respectively.

From the data given below which of the following reactant is most effective drying agent at 0^(@)C . Given P_(H_(2)O)^(@)=4.58 mm at 0^(@)C . i. SrCl_(2).6H_(2)O(s) hArr SrCl_(2).2H_(2)O(s)+4H_(1)O(g), K_(p)=6.9xx10^(-12) atm^(4) ii. Na_(2)SO_(4).10H_(2)O(s) hArr Na_(2)SO_(4)(s)+10H_(2)O(g), K_(p)=4.08xx10^(-25) atm^(10) iii. Na_(2)HPO_(4). 12H_(2)O(s) hArr Na_(2)HPO_(4). 7H_(2)O(s)+5H_(2)O(g), K_(p)=5.525xx10^(-13) atm^(5)

CuSO_(4).5H_(2)O(s)hArrCuSO_(4).3H_(2)O(s)+2H_(2)O(s) K_(P)=0.4xx10^(-3) atm^(2) Which of following sttement are correct:

For equilibrium ZnSO_(4).7H_(2)O(s)hArrZnSO_(4).2H_(2)O(s)+5H_(2)O(g) K_(P)=56.25xx10^(-10) atm^(5) and vapour pressure of water is 22.8 torr at 298K.ZnSO_(4).7H_(2)O(s) is efflorescent (lose water) when relative humidity is [5sqrt56.25=2.23]

Equilibrium constant for the following equilibrium is given at 0^(@)C . Na_(2)HPO_(4) . 12H_(2)O(s) hArrNa_(2)HPO_(4) . 7H_(2)O(s) + 5H_(2)O(g) K_(p) = 31.25xx10^(-13) . At equilibrium what will be partial pressure of water vapour:

For the equilibrium CuSO_(4)xx5H_(2)O(s)hArrCuSO_(4)xx3H_(2)O(s) + 2H_(2)O(g) K_(p) = 2.25xx10^(-4)atm^(2) and vapour pressure of water is 22.8 torr at 298 K. CuSO_(4) . 5H_(2)O(s) is efflorescent (i.e., losses water) when relative humidity is :

Na_(2)CrO_(4)+HCl to H_(2)Cr_(2)O_(7)+Na_(2)SO_(4)

Na_(2)CrO_(4)+HCl to H_(2)Cr_(2)O_(7)+Na_(2)SO_(4)

CuSO_(4).5H_(2)O(s)hArrCuSO_(4). 3H_(2)O(s)+2H_(2)O(g), K_(p)=4xx10^(-4)atm^(2) If the vapour pressure of water is 38 toor then percentage of relatative humidity is :(Assume all data at constant temperture)

H_(2)underline(S_(2))O_(8)+H_(2)O to H_(2)SO_(4)+H_(2)O_(2)

RESONANCE ENGLISH-CHEMICAL EQUILIBRIUM-Exercise-1 (Part-2)
  1. An endothermic reaction is represented by the graph:

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  2. The value of DeltaG^(@) for a reaction in aqueous phase having K(c)=1,...

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  3. The effect of temperature on equilibrium constant is expressed as(T(2)...

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  4. For the reaction CO(g)+H(2)O(g) hArr CO(2)(g)+H(2)(g) at a given t...

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  5. Given the following reaction at equilibrium N(2)(g) + 3H(2)(g)hArr2NH(...

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  6. The equilibrium SO(2)Cl(2)(g) hArr SO(2)(g)+Cl(2)(g) is attained at 25...

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  7. Densities of diamond and graphite are (3.5g)/(mL) and (2.3g)/(mL). C...

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  8. Introduction of inert gas (at the same temperature) will affect the eq...

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  9. The equilibrium SO(2)Cl(2)(g) hArr SO(2)(g)+Cl(2)(g) is attained at 25...

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  10. An equilibrium mixture in a vessel of capacity 100 litre contain 1 "mo...

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  11. For an equilibrium H(2)O(s)hArrH(2)O(l), which of the following statem...

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  12. A reaction in equilibrium is respresnt by the following equation 2A((s...

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  13. For the reaction CO(g)+H(2)O(g) hArr CO(2)(g)+H(2)(g) at a given t...

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  14. The two equilibrium AB hArr A^(+) + B^(-) and AB+B^(-)hArrAB(2)^(-) ar...

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  15. In the preceeding problem, if[A^(+)]"and"[AB(2)^(-)] "are " y " and "...

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  16. The following two reactions: i. PCl(5)(g) hArr PCl(3)(g)+Cl(2)(g) ...

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  17. C(s)+CO(2)(g)hArr2CO(g) K(p)=1atm CaCO(3)(s)hArrCaO(s)+CO(2)(s) K(p)...

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  18. Na(2)SO(4).10H(2)O(s)hArrNa(2)SO(4).5H(2)O(g) K(P)=2.43xx10^(-8) atm^(...

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  19. A(s)hArrB(g)+C(g) K(p(1))=36 atm^(2) E(s)hArrB(g)+D(g) K(p(2))=64atm...

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  20. In a closed container following equilibrium will be attained- A(s)+B...

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