Start Free Mock LoginAlready registered? Login here

Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoCalorimetryMedium2 minQB

PhysicsMediumsingle choice

Passage / Comprehension

A calorimeter of mass $m$ contains an equal mass of water in it. The temperature of the water and calorimeter is $t_{2}$ . A block of ice of mass $m$ and temperature $t_{3} < 0^{\circ} C$ is gently dropped into the calorimeter. Let $C_{1}$ , $C_{2}$ and $C_{3}$ be the specific heats of calorimeter, water and ice respectively and $L$ be the latent heat of ice.

The whole mixture in the calorimeter becomes water if

Options:

Answer:

Solution:

Complete melting requires sufficient heat to warm and melt the added ice.
$m (C_{1} + C_{2}) t_{2} > m C_{3} (0 - t_{3}) + m L$
$(C_{1} + C_{2}) t_{2} + C_{3} t_{3} - L > 0$
Equality is the boundary with all water at $0^{\circ} C$ .

Stream:JEESubject:PhysicsTopic:Heat & ThermoSubtopic:Calorimetry

⏱ 2mℹ️ Source: QB

Doubts & Discussion

Loading discussions...