1.

Given that ΔH = 0 for mixing of two gases. Explain whether the diffusion of these gases into each other in a closed container is a spontaneous process or not?

Answer»

that if the process is spontaneous, ∆G is less than 0. We also know that ∆G = ∆H - T∆S --------1 Where the formula for ENTROPY MIXING is given by, ∆S =  =−nR()-----2 In the above equation lnx is always negative and the value of X is between 0 to 1 and ∆S is always positive. In the equation 1, if ∆S is positive MEANS then ∆H is zero and ∆G is always negative. It is concluded that at any temperature the process is spontaneous.



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