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5 points Is methane soluble in water? Well, methane is a non-polar molecule that contains relatively non-polar C-H bonds. - 1834622 1. Groundwater in Pennsylvania water wells typically has a temperature of about 50 degrees Fahrenheit which allows about 28 mg/L of methane gas to remain dissolved in the water. Chemistry. Methane in groundwater is not explosive, but when water with dissolved methane comes into contact with air, the methane escapes from the water. Methane rises through the water column in the well, leaving methane-reduced water in the shroud. Methane is a gas, and so its molecules are already separate - the water doesn't need to pull them apart from one another. This would seem to imply that the enthalpy of solution for methane in water is negative (i.e. If methane were to dissolve, it would have to force its way between water molecules and … the process is exothermic). Ask for details ; Follow Report by Shany5 09/23/2016 Log in to add a comment Answer. Log in Join now 1. Answered by Tc3105. Well, methane is a non-polar molecule. The problem is the hydrogen bonds between the water molecules. Methane or other gas problems can sometimes be reduced or eliminated in a well by installing a gas “shroud.” A gas shroud is a pipe or tube inserted over a submersible pump that is open above the pump and sealed at the bottom to the pump. These nonpolar molecules don't dissolve so well in water. You may have heard "like dissolves like", since water is polar, it naturally tends to dissolve with other polar molecules. If this occurs indoors or in a confined space and the level methane in the indoor air reaches 5%, there is a danger of fire or explosion. No. Is methane soluble in water? Methane entering the water well below the water level can remain dissolved in the water but the concentration is dependent on both the pressure and temperature of the water. Log in Join now High School. Yes it is insoluble, because methane is a nonpolar molecule, which makes it insoluble in a polar solvent like water. Experimental measurements of methane solubility in water in equilibrium with methane hydrate in the absence and presence of a vapor phase were conducted at temperatures at 273.15, 278.15, 283.15, 288.15 and 293.15 K and pressures ranging from three-phase (H–L w –V) equilibrium pressure for each temperature (2.63 MPa at 273.15 K, 4.32 MPa at 278.15 K, 6.95 MPa at 283.15 K, 12.41 MPa … methane is not soluble in water, as methane is a non-polar hydrocarbon and water is a polar solvent. Methane is completely dissolved in water at 42 degrees Fahrenheit (5.5 C) but can be completely released (as a gas) at 58 degrees F (14.5 C).

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