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[20gm" ice at "10^(@)C" is mixed with "m...

[20gm" ice at "10^(@)C" is mixed with "m'" gm steam "],[" at "100^(@)C" .Find the minimum value of "m'" so "],[" that finaliy all ice.and steam converts into "],[" water.(Use "s_(ice)=0.5cal/gm^(@)C,s" water "=1cal/gm^(@)C,],[" L(melting) "=80cal/gm" and L(vaporization) "=540],[" (4) "185/27gmquad " (B) "135/17gm" f "],[" (c) "85/3gm_(+)quad " (D) "113/27gm]

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20 gm ice at -10^(@)C is mixed with m gm steam at 100^(@)C . The minimum value of m so that finally all ice and steam converts into water is: ("Use " s_("ice") = 0.5 "cal gm"^(@)C, S_("water") = 1 cal//gm^(@)C, L ) (melting) = 80 cal// gm and L ("vaporization") = 540 cal//gm )

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