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O(3) is prepared by subjecting 0, to sil...

`O_(3)` is prepared by subjecting 0, to silent electric discharge. The favourable conditions for the formation of ozone according to Le-chatlier's principle are

A

low temperature, low pressure

B

high temperature, high pressure

C

low temperature, high pressure

D

high temperature, low pressure

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To determine the favorable conditions for the formation of ozone (O3) from oxygen (O2) according to Le Chatelier's principle, we can follow these steps: ### Step 1: Understand the Reaction The formation of ozone from oxygen can be represented by the following reversible reaction: \[ 3 O_2 \rightleftharpoons 2 O_3 \] ### Step 2: Analyze the Energy Changes This reaction is endothermic, meaning that it requires energy input to proceed. In endothermic reactions, heat is absorbed, which affects the equilibrium position. ### Step 3: Apply Le Chatelier's Principle Le Chatelier's principle states that if a system at equilibrium is subjected to a change in concentration, temperature, or pressure, the system will adjust to counteract that change and restore a new equilibrium. ### Step 4: Consider Temperature Since the reaction is endothermic, increasing the temperature will favor the formation of products (in this case, ozone). Therefore, high temperature is favorable for the formation of ozone. ### Step 5: Consider Pressure In the reaction, we have 3 moles of O2 producing 2 moles of O3. Since the number of gas molecules decreases from reactants to products, lowering the pressure will favor the side with more moles of gas (the reactants). Therefore, low pressure is also favorable for the formation of ozone. ### Conclusion Based on the analysis, the favorable conditions for the formation of ozone (O3) from oxygen (O2) according to Le Chatelier's principle are: - **High temperature** - **Low pressure** Thus, the answer is: **High temperature and low pressure**.
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