What volume of oxygen gas ( O 2 ) measured at 0 ∘ C and 1 atm, is needed to burn completely 1 L of propane gas ( C 3 H 8 ) measured under the same conditions?NEET 2008 (Mains)

Question

What volume of oxygen gas ( O 2 ​ ) measured at 0 ∘ C and 1 atm, is needed to burn completely 1 L of propane gas ( C 3 ​ H 8 ​ ) measured under the same conditions?NEET 2008 (Mains)

TestHub · Accepted Answer

​ 22.4 L at STP C 3 ​ H 8 ​ ( g ) ​ + 5 × 22.4 L at STP 5 O 2 ​ ( g ) ​ → 3 CO 2 ​ ( g ) + 4 H 2 ​ O ( I ) ∵ 22.4 L C 3 ​ H 8 ​ at STP ≡ 5 × 22.4 L of O 2 ​ at STP ∴ 1 LC 3 ​ H 8 ​ at STP ≡ 22.4 5 × 22.4 ​ of O 2 ​ at STP = 5 L of O 2 ​ at NTP ​

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