Answer:
(c) Value of depends upon nature of gases
dissolved in water.
Hence correct order is Ar < CO2
< CH4 < HCHO and correct choice is (c).
Gas
Temperature (K)
KH/k bar
Ar
298K
40.3
CO2
298 K
1.67
CH4
298 K
0.413
HCHO
298 K
1.83x10-5
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