An ice cube at temperature − 2 0 ∘ C is kept in a room at temperature 2 0 ∘ C . The variation of temperature of the body with time is given by

The ice warms toward 0 ∘ C and the rate slows as the temperature difference falls. At 0 ∘ C the temperature is constant during melting. Then the water warms and approaches 2 0 ∘ C slowly. This shape is graph (B).

Start Free Mock LoginAlready registered? Login here

Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoCalorimetryMedium2 minQB

PhysicsMediumsingle choice

An ice cube at temperature $- 2 0^{\circ} C$ is kept in a room at temperature $2 0^{\circ} C$ . The variation of temperature of the body with time is given by

Options:

Answer:

Solution:

The ice warms toward $0^{\circ} C$ and the rate slows as the temperature difference falls.
At $0^{\circ} C$ the temperature is constant during melting.
Then the water warms and approaches $2 0^{\circ} C$ slowly.
This shape is graph (B).

Stream:JEESubject:PhysicsTopic:Heat & ThermoSubtopic:Calorimetry

⏱ 2mℹ️ Source: QB

Doubts & Discussion

Loading discussions...