Physics - Heat & Thermo Question with Solution | TestHub
PhysicsHeat & ThermoThermal ExpansionMedium2 minQB
PhysicsMediumsingle choice
5 g water at 30°C and 5 g ice at -20°C are mixed in a calorimeter of negligible water equivalent. Final temperature is: .
Options:
Answer:
A
Solution:
Water releases cooling to . Ice needs to reach . Remaining 100 cal melts only 1.25 g ice at 80 cal/g; both phases remain at 0°C.
Subject:PhysicsTopic:Heat & ThermoSubtopic:Thermal Expansion
⏱ 2mℹ️ Source: QB
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