Ch16_WritingK

# Ch16_WritingK - Writing and Manipulating K Expressions...

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Writing and Manipulating K Expressions Adding equations for reactions S(s) + O2(g) ¸ SO2(g) SO SO2(g) + 1/2 O2(g) ¸ SO3(g) SO NET EQUATION S(s) + 3/2 O 2(g) ¸ SO3(g) SO Knet [SO3 ] [O2 ]3/2 [SO2 ] K1 = [O2 ] Writing and Manipulating K Writing Expressions Changing coefficients S(s) + 3/2 O 2(g) ¸ SO3(g) SO Writing and Manipulating K Writing Expressions Changing direction S(s) + O2(g) ¸ SO2(g) SO 2 K [SO3 ] [O2 ]3/2 [SO3 ] [O2 ]3 K [SO2 ] [O2 ] [O2 ] [SO2 ] K2 = [SO3 ] [SO 2 ][O 2 ]1/2 2 S(s) + 3 O 2(g) ¸ 2 SO3(g) K SO new SO2(g) ¸ S(s) + O2(g) S(s) Knew Knew [SO3 ]2 [O2 ]3 = ( K old )2 Knew Knet = K1 • K 2 [O2 ] 1 = [SO2 ] Kold Writing and Manipulating K Writing Expressions Concentration Units We have been writing K in terms of mol/L. mol/L. These are designated by Kc But with gases, P = (n/V)•RT = conc • RT P is proportional to concentration, so we can write K in terms of P. These are designated by Kp. Kc and Kp may or may not be the same. and may 1 ...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online