Question

Critical temperature of H2O,NH3,CO2 and O2 are 647K,405.6K,304.10K and 154.2K respectively. If the cooling starts from 500K to their temperature, the gas that liquefies first is:

A
H2O
B
NH3
C
O2
D
CO2
Solution
Verified by Toppr

Critical Temperature of the gas in critical state, above which it cannot be liquefied by pressure.
Here, cooling starts from 500 K to critical temperature. So, H2O will liquefied first due to it's maximum critical temperature value.

Was this answer helpful?
0
Similar Questions
Q1

The values of the Henry's law constant Ar, CO2, CH4 and O2 in water at 25 oC are 40.30, 1.67, 0.41 and 34.86 kbar respectively. The order of their solubility in water at the same temperature and pressure is

View Solution
Q2

The critical temperature of water is higher than that of O2 because H2O molecule has


View Solution
Q3

Given van der Waals constant for NH3,H2,O2 and CO2 are respectively 4.17,0.244,1.36 and 3.59, which one of the following gases is most easily liquefied?

View Solution
Q4

The Van der waal's constant 'a' for gases CH4,N2,NH3 and O2 are 2.25, 1.39, 4.17 and 1.3 L2 atm molāˆ’2 respectively. The gas which shows highest critical temperature is:

View Solution
Q5

How many statement are true for photosynthesis:
(A) CO2 is oxidize and H2O is reduced
(B) CO2 is reduced and H2O is oxidize
(C) CO2 is reduced to from glucose
(D) H2O is oxidized to evolve O2

View Solution
Solve
Guides