Ten > Hydrocarbon
The commonly used gas for cooking purpose is LPG. Two compounds present in LPG are saturated hydrocarbons one of them contains 3 carbons and other contains 4 carbons.
- Write the moleular formulas of these compounds.
- What makes these gases exist in liquid state in the gas cylinder?
- Write balanced chemical equation of the reaction involved by the hydrocarbon having 3 carbon atoms, when it burns with oxygen.
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Atith Adhikari
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2 years ago
Solution
Propane and butane are the two compounds present in LPG.
- The molecular formula of Propane is \( \rm C_{3}H_{8} \). The molecular formula of butane is \( \rm C_{4}H_{10} \).
- Propane and Butane are filled in a gas cylinder under pressure. Due to high pressure, the molecules of these gases come together. Hence, the intermolecular distance between two molecules decreases. As a result, the gases transition from their gaseous state into a liquid state in the gas cylinder.
- The balanced chemical equation of the reaction of Propane when it burns with oxygen is given below: \[ \rm C_{3} H_{8} + 5O_{2} \rightarrow 3CO_{2} + 4H_{2}O \]As a result of this reaction, Carbon dioxide gas and Water are formed.
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