Home
Class 12
CHEMISTRY
3.2 g of oxygen gas is placed in a vesse...

3.2 g of oxygen gas is placed in a vessel of 10 litre at 1000 K so that 60% oxygen is dissociated to gaseous oxygen atoms. Assuming ideal gas nature, the final pressure at 1000 K is:

A

0.821 atm

B

1.31 atm

C

0.33 atm

D

0.49 atm

Text Solution

Verified by Experts

The correct Answer is:
B
3.2 g of `O_(2)` No. of moles contain are `rArr (3.2)/(32)` = 0.1 mole of `O_(2)`
`O_(2) (g) rArr 20 (g)`
at `t = 0 " " 0.1`
at `t = t_(1) " " 0.1 - 0.1 xx (60)/(100) " " 2 xx 0.1 xx (60)/(100)`
0.04 moles 0.12 mole
Initial moles ni = 0.1 mole
Final moles nf = `0.04 + 0.12 = 0.16` moles
Volume = 10 lt. Temperature = 1000 k
Using ideal gas equation.
`PV = nRT " " P = (nRT)/(V) = (0.16 xx 0.0821 xx 1000)/(10)`
P = 1.31 atm
Promotional Banner

Similar Questions

Explore conceptually related problems

16g of SO_(x) occupies 5.6 litre at STP . Assuming ideal gas nature, the volume of x is:

A 5-L vessel contains 1.4 g of nitrogen. When heated to 1800 K, 30% of molecules are dissociated into atoms. Calculate the pressure of the gas at 1800 K.

find the rms speed of oxygen molecules in a gas at 300K.

Amount of oxygen gas present in a 2 L vessel at 5 atm pressure and 27°C is

A vesel has 6 of oxygen at pressure at pressure P and temperature 400 K.A small hole is made in it so that oxygen leaks out. How much oxygen leaks out if the final pressure is (P)/(2) and temperauture 300 K ?

A gaseou mixture containing 50 g of nitrogen and 10 g of oxygen were enclosed in a vessel of 10 L capacity at 27^(@)C . Calculate (a) the number of moles of each gas. (b) the partial pressure of each gas. (c ) the total pressure of gaseous mixture.

One litre of oxygen at a pressure of 1 atm and two litres of nitrogen at a pressure of 0.5 atm are introduced into a vessel of volume 1 litre. If there is no change in temperature, the final pressure of the mixture of gas (in atm) is

A vessel of volume 5 litres contains 1.4 g of N_2 and 0.4 g of He at 1500 K . If 30 % of the nitrogen molecules are dissociated into atoms then find the gas pressure.