Chemistry 2009 Jamb Examination
Chemistry 2009 Jamb Examination
Question 51
A gas exerts pressure on its container because
Gas molecules are in continuous random motion, and when they strike the walls of the container, they exert a force per unit area, which is pressure.
Not clear enough?
Question 52
The basic assumption in the kinetic theory of gases that the collisions of the gaseous molecules are perfectly elastic implies that
Perfectly elastic collisions mean there is no loss of kinetic energy. Thus, molecules keep moving indefinitely after collisions.
Not clear enough?
Question 53
A mixture of sugar and sulphur can be separated by
Sugar dissolves in water while sulphur does not. Dissolve in water, filter out sulphur, then evaporate water to recover sugar.
Not clear enough?
Question 54
Water can be obtained as the only product during
The combustion of hydrogen in oxygen yields only water: $$2H_2 + O_2 \to 2H_2O$$.
Not clear enough?
Question 55
The gasification of coke is used for the manufacture of
Gasification of coke with limited air gives producer gas, a mixture of CO and N₂.
Not clear enough?
You might like
'' I am the resurrection and the life; he who believes in me, though he die, yet shall he live, and whoever lives and believes in me shall never die....'' Who did Jesus address this to?
\[
\begin{array}{|c|c|c|}
\hline
\textbf{Date} & \textbf{Receipt} & \textbf{Issued (Units)} \\
\hline
\text{May 2} & 80 \, @ \, \text{₦3.00} & - \\
\text{May 10} & 50 \, @ \, \text{₦3.20} & - \\
\text{May 17} & - & 20 \\
\text{May 25} & - & 60 \\
\text{May 31} & 20 \, @ \, \text{₦2.90} & - \\
\hline
\end{array}
\]