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One kilogram water at `0^(@)C` is brought into contact with a heat reservoir at `100^(@)C`. Find |
Answer» Correct Answer - (a). `312cal" "K^(-1),` (b). `-268cal" "K^(-1)` (c) ` 43.9cal" "K^(-1)` (d) spontaneous (a) `DeltaS=2.303nC_(P)log" "((T_(2))/(T_(1)))` `=2.303xx(1000)/(18)xx18" log "((373)/(273))=312cal" "K^(-1)` (b) `DeltaS_("reservoir")=-(DeltaQ)/(T)` `DeltaQ=msDeltat=1000xx1xx1000=10^(5)cal` `DeltaS=(-10^(5))/(373)=-268.1cal" "K^(-1)` (c) `DeltaS_("universe")=312-268.1=43.9cal" "K^(-1)` (d) `DeltaS gt 0`, the process will be spontaneous. |
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