1.

Air contain 20 % oxygen by volume. Calculate the theoretical volume of air. Which will be required for buring 100 cm^(3) of propane completely. All volume are measured under same conditions of temperature and pressure.

Answer»

`500 m^(3)`
`2500 m^(3)`
`100 m^(3)`
`5000 m^(3)`

Solution :`C_(3)H_(8) + 5O_(2) rarr 3 CO_(2) + 4 H_(2)O`
`100 m^(3)`
`O_(2)` required for complete cumbustion of propane `= 500 m^(3)`
Amount of air `rArr X m^(3)`
`(20.)/(100) XX x = 500`
`x = 2500 m^(3)` air


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