In conversion of lime-stone to lime, {\CaCO}_3( { s}) \to {\CaO}( { s})+ {\CO}_2( {\g}) the vales of ∆ {\H}^{\circ} and ∆ {\S}^{\circ} are +179.1 {\kJ} mol -1 and 160.2 {\J} \/ {\K} respectively at 298 {\K} and 1 bar. Assuming that ∆ {\H}^{\circ} do not change with temperature, temperature above which conversion of limestone to lime will be spontaneous is [AIEEE 2007]

AIEEE 2007 Solved Paper

Section: Chemistry

Question : 8 of 118

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In conversion of lime-stone to lime,
CaCO3( s)→CaO( s)+CO2(g) the vales of ∆H∘ and ∆S∘ are +179.1‌kJ mol −1 and 160.2J∕K respectively at 298K and 1 bar. Assuming that ∆H∘ do not change with temperature, temperature above which conversion of limestone to lime will be spontaneous is

[AIEEE 2007]

1008 K
1200
845 K
1118 K

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