(a) Consider the combustion of butane, given below: 2 C4H10(g) + 13 O2(g) Soluti
ID: 595395 • Letter: #
Question
(a) Consider the combustion of butane, given below:2 C4H10(g) + 13 O2(g)
Explanation / Answer
If rA is the reaction rate of component A and B,C,D are the other components of the reaction: a A + b B ---> c C + d D then r = -rA/|a | = -rB/ | b | = rC / | c| = rD/ |d| Solution to a) A= C2H4; a= -1 ;rA= -0.22 M/s C= CO2 ;c =2; rC= -|c| rA =2*0.22 M/s = 0.44 M/s D= H2O ; d= 2 => rD=rC=0.44 M/s b) A= N2H4; -rA = dpA/dt = -38 Torr/h B= NH3 b= 2 ;rB = -| b| rA =2*38 Torr/h= 76 Torr/h c= H2; rC=rA Dalton`s Law: p= pA+pB+pC => dp/dt= dpA/dt+ dpB/dt+dpC/dt = -rA -rB +rC= -38 -38+ 76 Torr/h =0 This result is correct because there is no change in moles during reaction .
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