Problem 3 Three capillaries have identical o.d. but different geometries of the inner bore; the geometries are shown below. Which capillary would you choose to work with a temperature-sensitive sample, which decomposes at higher temperatures? Support your answer by calculations. оп 10 μm 20 μm 20 um 20 μm

2) Consider two cubes of plastic and wood that are floating in water, each of side s. (see diagram). The density of the plastic is 80.0 % of the density water and the density of the wood is 60.0 % of the density of water. An aluminum block having base area s? is going to be glued on top of the plastic and wood system. The density of aluminum is 2.7 times the density of water. Assume the system stays upright (does not tip over). Alum block a) How tall does the aluminum block need to be if the top of the aluminum block will be at the surface of the water when equilibrium is reached ? Give answer in terms of s. woed water plastic on tup

The viscosity of honey is about 1 Pa-s. The viscosity of water at 20C is about 1cp. How many times is honey more viscous than water? A) 10 B 1000 100 D) 10000

At 293 K Benzene flows through viscometer 1.8 times slower than acetone. What is the density ratio of acetone to benzene based on viscosity? Assume that viscosity of acetone at 293 K is the same as 298 K.