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Physics Homework Help?

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A glass is filled to the brim with 460.0 mL of water at 100.0 ∘C.

If the temperature of glass and water is decreased to 20.0 ∘C, how much water could be added to the glass?
asked Nov 29, 2015 in PHYSICS by anonymous

1 Answer

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 The glass of brim contains water of volume 460.0 mL at 100°C

The temperature of glass and water is decreased to 20°C.

Find the amount of water added to the glass.

First find the volumetric expansion of water.

Change in volume of water is image, where image is the coefficient of expansion of water image

image

Change in volume of water is 7.618 mL.

Find the volumetric expansion of glass.

Change in volume of glass is image, where image is the coefficient of expansion of glass image

image

Change in volume of glass is 0.9384 mL.

Amount of water to be added to glass such that the temperature is decreased by 20°C is image

Amount of water to be added to the glass is 6.68 mL.

answered Nov 30, 2015 by Lucy Mentor
edited Nov 30, 2015 by Lucy

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