Mix 10 g water at 20°C with 10 g ice at -10°C in an insulated vessel. Use ci = 0.5 , cw = 1 cal / ( g ∘ C ) and Lf = 80 cal / g . Choose true statements.

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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoThermal ExpansionMedium2 minQB

PhysicsMediummultiple choice

Mix 10 g water at 20°C with 10 g ice at -10°C in an insulated vessel. Use $ci = 0.5, cw = 1 cal / (g^{\circ} C)$ and $Lf = 80 cal / g$ . Choose true statements.

Options:(select one or more)

Answer:

A, B, C

Solution:

Water supplies 200 cal; ice warming takes 50 cal. Remaining 150 cal melts $150/80 = 1.875 g$ , leaving 8.125 g ice. Both phases at 0°C. A,B,C.

Subject:PhysicsTopic:Heat & ThermoSubtopic:Thermal Expansion

⏱ 2mℹ️ Source: QB

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