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K(H) value for' Ar(g),CO(2g),HCHO(g) and...

`K_(H)` value for' `Ar_(g),CO_(2g),HCHO_(g)` and `CH_(4g)` are 40.39, 1.67, `1.83xx10^(-5)` and 0.413 respectively.
Arrange these gases in the order of their in creasing solubility.

A

`HCHO lt CH_(4) lt CO_(2) lt Ar`

B

`HCHO lt CO_(2) lt CH_(4) lt Ar`

C

`Ar lt CO_(2) lt CH_(4) lt HCHO`

D

`Ar lt CH_(4) lt CO_(2) lt HCHO`

Text Solution

Verified by Experts

The correct Answer is:
C
Value of `K_(H)` depends upon nature of gases dissolved in water

Hence correct order is `Ar lt CO_(2)ltCH_(4)ltHCHO`.
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K_(H) value for Ar(g),CO(g), HCHO(g) and CH_(4)(g) are 40.39 , 1.67 , 1.83xx10^(-5) and 0.413 respectively. Arrange these gases in the order of their increastively solubility.

K_(H) value for Ar(g),CO_(2)(g),HCHO(g)and CH_(4)(g) are 40.39,1.67,1.83xx10^(-5)and0.413 respectively. Arrange these gases in the order of their increasing solubility.

The heats of formation of CH_(4)(g),C_(2)H_(6)(g) and C_(4)H_(10)(g) are -74.8, -84.7 and -126.1 kJ" "mol^(-1) respectively. Arrange them in order of their efficiency as fuel per gram. Heats of formation of CO_(2)(g) and H_(2)O(l) are -393.5 and -285.8 kJ mol^(-1) respectively.

Delta_(f)^(@) for CO_(2(g)), CO_((g)) and H_(2)O_((g)) are -393.5,-110.5 and -241.8kJ mol^(-1) respectively. The standard enthalpy change ( in kJ) for given reaction is : CO_(2(g))+H_(2(g)) rarr CO_((g))+H_(2)O_((g))

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