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2441
What is the value of -14
o
C on the Kelvin temperature scale?
A.
259K
B.
287 K
C.
287
o
K
D.
259
o
K
View Answer & Discuss (6)
WAEC 2009
2442
Which of the following expressions correctly represents Charles' law?
A.
PV = K
B.
R \(\alpha \frac{1}{\sqrt{p}\)
C.
PV = RT
D.
V = KT
View Answer & Discuss
WAEC 2009
2443
In a mixture of gases which do not react chemically together, the pressure exerted by the individual gases is called
A.
atmospheric pressure
B.
partial pressure
C.
total pressure
D.
vapour pressure
View Answer & Discuss
WAEC 2009
2444
In a chemical reaction, ∆H is positive when
A.
H
(product)
>H
(reactant)
B.
H
(product)
< H
(reactant)
C.
H
(product)
= H
(reactant)
D.
H
(product)
= Zero
(reactant)
View Answer & Discuss (2)
WAEC 2009
2445
Consider the reaction represented by the following equation: H
2(g)
+ \(\frac{1}{2}\) O
(g)
→ H
2
O
(g)
∆H =-285.8 KJmo
-1
∆H represents the enthalpy of
A.
formation
B.
hydration
C.
neutralization
D.
solution
View Answer & Discuss
WAEC 2009
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