Answer to Question #224800 in General Chemistry for sam

Question

8. An ideal gas absorbs 1.00 x 103 J of heat and simultaneously expands against a constant external pressure of 1.10 atm from an initial volume of 10.0 L to a final volume of 35.0 L. Determine the expansion work (w) and change in internal energy (ΔU) for this process.

w = ΔU =

9. For the reaction (at 25 °C): N2(g) + O2(g) ⇌ 2NO(g) Kc = 4x10-31

Calculate the value of Kp (at 25 °C) for: NO(g) ⇌ ½ N2(g) + ½ O2(g)

10. If a steady current of 15.0 A is passed through an aqueous solution of CuSO4, how long will it take to deposit 0.100 mol of Cu at the cathode?

11. Rank the following species according to their relative strength as reducing agents. Rank the weakest reducing species as #1 and the strongest as #6.

___ Br-

___ H2O2 (acidic half-cell)

___ Ce3+

___ Cd

___ Li

___ Al

Answer 1

11.) Al, CD, Br^-, H2O2 (acidic half-cell), Li

8). 103 × 1.1 × 10 × 35

= 39655