Question

Calculate the amount of work done against an atmospheric pressure of 1.00 atm when 500.0 g of zinc dissolves in excess acid at 30.0°C.

Zn(s) + 2H+(aq) → Zn2+(aq) + H2(g)

Possible answers:

A. w = +24.9kJ
B. w = -2.52kJ
C. w = 0
D. w = -19.3kJ
E. w = +22.4kJ

Answer 1

D.w = -19.3kJ sorry if wrong

Answer 2

D w 19 k j. I belive. thx.