The reaction $CaCO_3 \rightleftharpoons CaO + CO_{2(g)}$ goes to completion in a lime kiln because:

Change in volume of the system does not alter the number of moles in which of the following equilibrium?

In a reversible reaction,a catalyst...

When a vapor is heated slowly from $25\,^oC$ at atmospheric pressure,its color initially deepens. When the temperature is increased above $160\,^oC$,the color fades. At $600\,^oC$,the vapor becomes almost colorless,but when the pressure is increased at this temperature,the color deepens again. What is this vapor?

For the isomerization reaction $cis-2-pentene \rightleftharpoons trans-2-pentene$,the standard free energy change at $400 \ K$ is $-3.67 \ kJ/mol$. If more $trans-2-pentene$ is added to the reaction vessel,then ...........

In the reaction: $H_2S \rightleftharpoons 2H^{+} + S^{2-}$,when $NH_4OH$ is added,then