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921
The pressure exerted by a gas is a function of the
A.
total volume of the gas
B.
speed of the gaseous molecules
C.
mass of each gaseous molecule
D.
frequency of collision between gaseous molecules
View Answer & Discuss
WAEC 2013
922
Which of the following gases are arranged in increasing order of diffusion rate? [H = 1 .0; C = 12; N = 14; O = 16; S = 32]
A.
SO
2
O
2
, NH
3
H
2
B.
H
2
S,NH
2
,O
2
,SO
2
C.
CO
2
,N
2
O,O
2
,SO
2
D.
NH
3
,NO
2
,N
2
,CO
2
View Answer & Discuss (5)
WAEC 2013
923
Which of the following variables is a measure of the average kinetic energy of the molecule of a gas?
A.
Density
B.
Pressure
C.
Temperature
D.
Volume
View Answer & Discuss (1)
WAEC 2013
924
When heat is absorbed during a chemical reaction, the reaction is said to be
A.
adiabatic
B.
endothermic
C.
exothermic
D.
isothermal
View Answer & Discuss
WAEC 2013
925
The aqueous solution which has pH > 7 is
A.
FeCI
3(aq)
B.
CuSO
4(aq)
C.
KNO
3(aq)
D.
Na
2
CO
3(aq)
View Answer & Discuss
WAEC 2013
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