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Question
Statement 1: Increasing temperature increases the density of point defects.
Statement 2: The process of formation of point defects in solids is endothermic and has ΔS>0.
Statement 1: Increasing temperature increases the density of point defects.
Statement 2: The process of formation of point defects in solids is endothermic and has ΔS>0.
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Solution
The correct option is A Statement-1 is true, Statement-2 is true and Statement-2 is the correct explanation for Statement-1
The process of formation of point defects in solids is endothermic. Hence, ΔH>0 and also, ΔS>0.
When temperature is increased, ΔG=ΔH−TΔS<0. The process of formation of defects become spontaneous. Hence, more and more defects are created per unit volume.
Thus, increasing temperature increases the density of point defects.
The process of formation of point defects in solids is endothermic.
Hence, ΔH>0 and also, ΔS>0.
When temperature is increased, ΔG=ΔH−TΔS<0. The process of formation of defects become spontaneous. Hence, more and more defects are created per unit volume.
Thus, increasing temperature increases the density of point defects.
When temperature is increased, ΔG=ΔH−TΔS<0. The process of formation of defects become spontaneous. Hence, more and more defects are created per unit volume.
Thus, increasing temperature increases the density of point defects.
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