Practice Quiz 2.2002

# Practice Quiz 2.2002 - Quiz 2 EQUATIONS and CONSTANTS E = E...

This preview shows pages 1–2. Sign up to view the full content.

Quiz 2 FORM A February 15, 2002 EQUATIONS and CONSTANTS: E = E o – (RT/n F ) ln Q G = G o + RT ln Q G = – nF E E = E o – (0.0257/ n) ln Q at 25 o C G = H T S G o = – nF E o E = E o – (0.0592/ n) log Q at 25 o C G o = H o T S o G o = – RT ln K E o = (RT/n F ) l n K R = 8.3145 J mol –1 K –1 F = 96,485 C/mol 1. Indicate the signs of H and S such that the reaction is spontaneous at all temperatures. H S a) b) + c) + d) + + 2. Consider the following reaction: H + (aq) + OH (aq) —> H 2 O (l) H = –56 kJ How much heat is released when 100 mL of 0.4 M HCl is mixed with 100 mL of 0.3 M Ba(OH) 2 ? a) 3.36 kJ b) 5.60 kJ c) 1.68 kJ d) 56.0 kJ e) 2.24 kJ 3. What is the oxidation state (number) for S in Na 2 S 2 O 3 a) + 2 b) – 2 c) + 4 d) – 4 e) none of these 4. In an electrochemical cell, a cobalt electrode is immersed in a Co 2+ solution and a lead electrode is immersed in a Pb 2+ solution.

This preview has intentionally blurred sections. Sign up to view the full version.

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

{[ snackBarMessage ]}

### Page1 / 2

Practice Quiz 2.2002 - Quiz 2 EQUATIONS and CONSTANTS E = E...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online