Why the coefficient of volume expansion is zero for water at $4\,^oC$?
Because the density of water at $4^{\circ} \mathrm{C}$ is maximum.
Coefficient of real expansion of mercury is $ 0.18 \times 10^{-3}{°C^{-1}}$. If the density of mercury at $0°C$ is $13.6\, gm/cc$. its density at $473K$ is
Water falls from a height $500m$. What is the rise in temperature of water at bottom if whole energy remains in the water ……….. $^\circ \mathrm{C}$
A blacksmith fixes iron ring on the rim of the wooden wheel of a horse cart. The diameter of the rim and the iron ring are $5.243\; m$ and $5.231\; m$, respectively at $27^oC$. To what temperature (in $^oC$) should the ring be heated so as to fit the rim of the wheel?
In a thermostat two metal strips are used, which have different …………
Expansion during heating
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