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calculate the increase in vol

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Calculate the increase in volume of 5 mm3 of mercury at a temperature of 20 °C when it is heated to 50 °C. The coefficient of linear expansion of mercury is 70 x 10-6 /K.
asked Jul 17, 2014 in PHYSICS by anonymous

1 Answer

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Original volume of the mercury,= 5 mm³

Initial temperature,T1 =20°C =293 K

Final temperature,T2 =50°C =323 K

Linear expansion of mercury,α =  70 x 10^-6 /K

Calculate the  increase in volume.

ΔV = αV (T2 - T1)

     =(70 x 10^-6)(5)(323-293)

    = 0.015 mm³

Therfore , the increase in volume is 0.015 mm³

answered Jul 17, 2014 by bradely Mentor

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