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17. A glass flask of volume 200 cm3 is just filled with mercury at20°C. The amount of mercury that will overflow when thetemperature of the system is raised to 100°C is(Yglass 1.2 x10-s / CYmercury 1.8x10/oC) |
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Answer» volume expansion coefficient of glass = 3 x 5.9x10⁻⁶ K⁻¹volume expansion coefficient of mercury = 3 x 61x10⁻⁶ K⁻¹ The amount of overflow depends on the difference between these, which is3x10⁻⁶ x (61-5.9) = 1.653x10⁻⁴ K⁻¹ So the mercury expands more than the glass by an amount:200 x 1.653x10⁻⁴ x (100 – 20) = 2.6cm³This is the amount that overflows. hit like if you find it useful nhi aaya |
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