an unknown gas has a volume of 200L at 5 atm and -1400 degree celcius what is its volume at STP?

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1] -1400 Celsius is meaningless, as you can only get to -273.15 C
2] When you find the correct temp [maybe 1400 C ?] use PV = nRT, rearranging to n = PV/RT, to find n
3] THen use 22.4 liters/mole at STP to find volume....Show more