Chemistry - Chemical Equilibrium Question with Solution | TestHub

$$\begin{array}{c}\text{A}\text{catalyst}\text{speeds}\text{up}\text{both}\text{the}\text{forward}\text{and}\text{reverse}\text{reactions}\text{equally,}\text{thus}\text{it}\\ \text{does}\text{not}\text{alter}\text{the}\text{equilibrium}\text{state.}\text{Therefore,}\text{(a)}\text{is}\text{correct.}\text{The}\\ \text{equilibrium}\text{constant,}\text{K,}\text{depends}\text{solely}\text{on}\text{temperature}\text{and}\text{is}\text{independent}\text{of}\\ \text{initial}\text{concentrations.}\text{Hence,}\text{(b)}\text{is}\text{correct.}\text{At}\text{equilibrium,}\text{the}\text{forward}\text{and}\\ \text{reverse}\text{reaction}\text{rates}\text{are}\text{equal,}\text{and}\text{the}\text{reaction}\text{continues}\text{dynamically.}\\ \text{Therefore,}\text{(c)}\text{is}\text{incorrect.}\text{Since}\text{K}\text{depends}\text{only}\text{on}\text{temperature,}\text{it}\text{is}\\ \text{independent}\text{of}\text{pressure.}\text{Thus,}\text{(d)}\text{is}\text{correct.}\text{The}\text{correct}\text{options}\text{are}\text{(a),}\\ \text{(b),}\text{and}\text{(d).}\end{array}$$