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1. The coefficient of thermal expansion aT allows the expansion of a liquid to be determined using the equation DV- ¼ aTV-DT. Calculate the decrease in 2 m3 of 40-C water if the temperature is lowered by 10-C. What pressure would be needed to cause the same decrease in volume?

2. Estimate the pressure inside a droplet of 20-C water and a bubble of 20-C water if their diameters are

(a) 40 mm

(b) 20 mm

(c) 4 mm

3.  How high would 20-C water climb in a 24-mm-diameter vertical capillary tube if it makes an angle of 20- with the wall of the tube?

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