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The transition temperature ofrhombic an...

The transition temperature ofrhombic and monoclinic sulphur `"___________"`

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`96.5^@`
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Sulphur exists is more than one solid form. The stable form at room temperature is rhombic sulphur. But above room temperature the following reaction occurs. S ("rhomic") rarrS("monoclinic") If DeltaH^(Theta) =- 276.144J at 298 K and 1atm and DeltaG^(Theta) = 75.312J a. Calculate DeltaS^(Theta) at 298K . b. Assume that DeltaH^(Theta) and DeltaS^(Theta) do not vary significantly with temperature, calculate T_(eq) , the temperature at which rhombic and monoclinic sulphur exist in equilibrium with each other.

Sulphur exists in more than one solid form. The stable form at room temperature is rhombic sulphur. But above room temperature the following reaction occurs : S (rhombic) rarr S (monoclinic) If Delta H = 276.144 J at 298 K and 1 atm and Delta G = 75.312 J Assume that Delta H and Delta S do not vary significantly with temperature, calculate T_(eq) , the temperature at which rhombic and monoclinic sulphur exist in equilibrium with each other.

The enthalpies of combustion of rhombic sulphur and monoclinic sulphur are - 295.1 and - 296.4 kJ mol^(-1) respectively. The enthalpy ofallotropic transformation of monoclinic to rhombic sulphur is