Question

The density of a gas is 3.8 g/l at stp.Calculate it's density at 27 degree Celsius and 700 torr pressure.​

Answer 1

IF IT IS CORRECT MARK ME BRAINEST

Use P1V1/T1 = P2V2/T2 Ideal Gas Equation

STP (Standard Temperature and Pressure) means 0 C (273 K) and 1 atm pressure. 25 C (298 K) and 1 atm is called NTP (Normal Temperature and Pressure). The given condition is not NTP. Howeeve, the above equation can be re-written as

T2P1/T1P2 = d1/d2 where d’s stand for densities.

If case 1 is taken as STP and case 2 is taken as the Given Temperature and Pressure (27 C or 300 K and 700 torr or 0.921 atm; shall we say, GTP), the substitution gives

(300*1)/(273*0.921) = 3.8/d2

So d2 = 3.8*273*0.921/300 = 3.19 g /lt

I may be excused if the numerical entries or calculations are wrong.