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General
Easy
Question
A vessel contains 14 g (7 moles) of hydrogen and 96 g (3 moles) of oxygen at STP. Chemical reaction is induced by passing electric spark in the vessel till one of the gases is consumed. The temperature is brought back to it's starting value 273 K. The pressure in the vessel is-
- 0.1 atm
- 0.2 atm
- 0.3 atm
- 0.4 atm
The correct answer is: 0.1 atm
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