Question

( q=-36.5 k J )
Inigative dunter the luat releassd)
[
begin{array}{l}
V=500 times 50=25000 mathrm{cm}^{3}=25 mathrm{l}
w=-P . d mathrm{w}=-1 times(25)=-25 mathrm{latm}
end{array}
]
As we lawow, ( 1 k+=9.86 ) bettm
6
[
begin{array}{l}
therefore-25 L a+m=-2.53 mathrm{kF}
Delta E=9+D . d N
end{array}
]
[
=-36.5+2.53
]
( =-39.03 ) EF/mol.

# One mole of solid Zn is placed in excess of dilute H2SO4 at 27°C in a cylinder fitted with a piston. Find the value of AU, q and w for the process if the area of piston is 500 cm² and it moves out by 50 cm against a pressure of 1 atm during the reaction. The heat given to surrounding is 36.5 kJ. Zn(s) + 2H+ (aq) → Zn²+ (aq) + H2(g)

Solution