Physics Homework Help?

Question

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?

Answer 1

 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 , where is the coefficient of expansion of water

Change in volume of water is 7.618 mL.

Find the volumetric expansion of glass.

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

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

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