A pendulum clock is correct at 30°C. With α = 16 × 1 0 − 6 K − 1 , find its first-order daily gain in seconds at 5°C, to two decimals.

Cooling by 25 K gives gain 2 1 ( 16 × 1 0 − 6 ) ( 25 ) ( 86400 ) = 17.28 s / day.

Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoThermal ExpansionMedium2 minQB

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A pendulum clock is correct at 30°C. With $α$ $= 16 \times 1 0^{- 6} K^{- 1}$ , find its first-order daily gain in seconds at 5°C, to two decimals.

Answer:

17.28

Solution:

Cooling by 25 K gives gain $\frac{1}{2} (16 \times 1 0^{- 6}) (25) (86400) = 17.28 s /$ day.

Subject:PhysicsTopic:Heat & ThermoSubtopic:Thermal Expansion

⏱ 2mℹ️ Source: QB

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