For the reaction
$$ \mathrm{N}_{2(\mathrm{~g})}+3 \mathrm{H}_{2(\mathrm{~g})} \longrightarrow 2 \mathrm{NH}_{3(\mathrm{~g})} $$
$\mathrm{N}_{2(\mathrm{~g})}$ disappears at the rate of $2 \times 10^{-4} \mathrm{~mol} \mathrm{dm}^{-3} \mathrm{~s}^{-1}$. Find the rate of $\mathrm{NH}_3$ formation.
$4 \times 10^{-4} \mathrm{~mol} \mathrm{dm}^{-3} \mathrm{~s}^{-1}$
$1.5 \times 10^{-4} \mathrm{~mol} \mathrm{dm}^{-3} \mathrm{~s}^{-1}$
$2.0 \times 10^{-4} \mathrm{~mol} \mathrm{dm}^{-3} \mathrm{~s}^{-1}$
$2.5 \times 10^{-4} \mathrm{~mol} \mathrm{dm}^{-3} \mathrm{~s}^{-1}$
Which from following quantity of different gases contains maximum number of molecules?
$7 \mathrm{~g} \mathrm{~N}_2$
$2 \mathrm{~g} \mathrm{H}_2$
$8 \mathrm{~g} \mathrm{O}_2$
$20 \mathrm{~g} \mathrm{NO}_2$
If for the cell reaction,
$$ \mathrm{A}_{(\mathrm{s})}+\mathrm{B}_{(\mathrm{aq})}^{+} \longrightarrow \mathrm{A}_{(\mathrm{aq})}^{+}+\mathrm{B}_{(\mathrm{s})} $$
if $\mathrm{E}_{\text {cell }}^{\circ}=0.0592 \mathrm{~V}$. What is equilibrium constant of reaction at 298 K ?
1
10
100
1000
Which from following conditions defines the critical temperature of a gas is the temperature
above which gas cannot be liquified by increasing pressure.
above which gas can no longer remain in the gaseous state.
at which volume of given mass of a gas becomes zero.
at which volume of given mass of a gas becomes double.
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