Select all of the two-phase material systems from the list below.(a) Solid ductile cast iron (ferrite solid solution + embedded graphite spheres) (b) Solid sodium chloride (salt, NaCl) (c) Liquid bronze (Cu + Sn liquid solution) (d) Solid gray cast iron (ferrite solid solution + embedded graphite flakes) (e) Solid aluminum featuring dissolved silicon (f) Solid lead-tin solder (a mixture of Pb-rich and Sn-rich solid solutions) (g) Partially melted aluminum (h) Frozen water with trapped air bubbles (i) Epoxy embedded with carbon fibers

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

24

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally