Question

The following reaction has an unknown Kc at 298K.
2 CH4(g) C2H2(g) + 3 H2(g) Kc = ?
Determine the unknown Kc at 298K using the following three reactions that have known Kc
values at 298K:
CH4(g) + H2O(g) CO(g) + 3 H2(g) Kc = 2.0 × 10-28
2 C2H2(g) + 3 O2(g) 4 CO(g) + 2 H2O(g) Kc = 4.5
H2(g) + ½ O2(g) H2O(g) Kc = 5.4 × 1020

Answer 1

Answer:

A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus and minus signs.