Given
(i) C(graphite)+O2(g) → CO2(g); 
rH0=x KJ mol−1
(ii) C(graphite)+
2(g)→CO2(g); rH0 =y kJ mol−1
(iii) CO(g)+
2(g)
CO2(g); 
rH0 = z kJ mol−1
Based on the above thermochemical equations, find out which one of the following algebraic relationships is correct?
(a)
z= x+y
(b)
x= y−z
(c)
x= y+z
(d)
y=2z − x
Given
(i) C(graphite)+O2(g) → CO2(g); rH0=x KJ mol−1
(ii) C(graphite)+2(g)→CO2(g); rH0 =y kJ mol−1
(iii) CO(g)+2(g)CO2(g); rH0 = z kJ mol−1
Based on the above thermochemical equations, find out which one of the following algebraic relationships is correct?
(a)
z= x+y
(b)
x= y−z
(c)
x= y+z
(d)
y=2z − x
Question ID - 52398 | SaraNextGen Top Answer
Given
(i) C(graphite)+O2(g) → CO2(g); rH0=x KJ mol−1
(ii) C(graphite)+2(g)→CO2(g); rH0 =y kJ mol−1
(iii) CO(g)+2(g)CO2(g); rH0 = z kJ mol−1
Based on the above thermochemical equations, find out which one of the following algebraic relationships is correct?
(a)
z= x+y
(b)
x= y−z
(c)
x= y+z
(d)
y=2z − x
|
Given (i) C(graphite)+O2(g) → CO2(g); (ii) C(graphite)+ (iii) CO(g)+ Based on the above thermochemical equations, find out which one of the following algebraic relationships is correct? |
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|
(a) |
z= x+y |
(b) |
x= y−z |
|
(c) |
x= y+z |
(d) |
y=2z − x |
1 Answer
127 votes
Answer Key / Explanation : (c) -
C(graphite) +O2 (g)
CO2 (g)
rH0 = xkJ /mol ...(1)
C(graphite)+ 
O2 (g)
CO(g) 
r H0 ykJ /mol …(2)
CO(g)+
O 2(g) 
CO2 (g)
r H0 zkJ / mol …(3)
(1)=(2)+(3)
x = y + z
127 votes
Answer Link
127