Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoThermal ExpansionMedium2 minQB

PhysicsMediumassertion reason

Statement 1: When water is heated from $0^{\circ} C$ to $1 0^{\circ} C$ , it first expands and then contracts.

Statement 2: Water has a negative coefficient of expansion from $0^{\circ} C$ to $4^{\circ} C$ , and a positive coefficient thereafter.

Answer:

Solution:

Water contracts from $0$ to $4^{\circ} C$ then expands.
Statement 1 is false.
Density is maximum at $4^{\circ} C$ so statement 2 is true.

Stream:JEESubject:PhysicsTopic:Heat & ThermoSubtopic:Thermal Expansion

⏱ 2mℹ️ Source: QB

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