Calculate z and v for ethane at 50c and 15 bar by the following: a) the truncated virial equation � = #$ %& = 1 + ) $ + * $+with the following virial coefficients b=156.7 cm3/mol and c = 9,650 cm6/mol2 b) the truncated virial equation � = #$ %& = 1 + )# %& with a value of b from the generalized pitzer correlation �- = �. + ��0 c) the redlich kwong equation d) the soave redlich kwong equation e) the peng robinson equation

electron microscopy and scanning tunneling microscopes gives us a greater understanding of atoms by being able to see the atom itself, and lets us see some atomic reactions.

explanation:

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.

l dont know l am s sorry

a electronegativity decreases beacuse the size of nucleus is bigger.