You visited us 1 times! Enjoying our articles? Unlock Full Access!

Stoichiometric Calculations

Two flasks of...

Question

Two flasks of equal volume are connected by a narrow tube (of negligible volume) all at $27^{o} C$ and contain $0.70 m o l$ of $H_{2}$ at $0.5 a t m$ . One of the flask is then immersed into a bath kept at $127^{o} C$ , while the other remains at $27^{o} C$ . The final pressure in each flask is:

Final pressure in the apparatus is

0.5714 a t m

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Number of moles in one of the flasks are

0.4

and in other are

0.3

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Final pressure is

3.7281 a t m

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Both

(a)

and

(b)

are correct

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A Final pressure in the apparatus is $0.5714 a t m$
We know, $P V = n R T$

$0.5 V = 0.7 R 300$

so $V = 420 R$

In the 2nd case, the pressure will be the same in both flasks and the sum of moles of gas will be 0.7. But Volume will be half $420 R / 2 = 210 R$

Flask 1-
$P V = a R T$
$P 210 R = a R 300 \Rightarrow a = 0.7 P$

Flask2-
$P V = b R T$
$P 210 R = b R 400 \Rightarrow b = 0.525 P$

$a + b = 1.225 P = 0.7$

$P = 0.571 a t m$

Hence, the correct option is $A$

Suggest Corrections

Similar questions

Q. Two flasks of equal volume are connected by a narrow tube (of negligible volume) all at

27^{\circ} C

and contains 0.70 mole of

H_{2}

at 0.5 atm. One of the flask is then immersed into a bath kept at

127^{\circ} C

, while the other remains at

27^{\circ} C

. The final pressure in each flask is:

Q. Two flasks of equal volume are connected by a narrow tube (of negligible volume) all at

27^{0}

C and contain 0.70 mole of

H_{2}

at 0.5 atm. One of the flask is then immersed into a bath kept at

127^{0}

C, while the other remains at

27^{0}

C. The final pressure in each flask is :

Q. Two flasks of equal volume are connected by a narrow tube (of negligible volume) all at

27^{\circ} C

and contains 0.70 mole of

H_{2}

at 0.5 atm. One of the flask is then immersed into a bath kept at

127^{\circ} C

, while the other remains at

27^{\circ} C

. The final pressure in each flask is:

Q. Two flasks of equal volume connected by a narrow tube (of negligible volume) are at

27^{\circ} C

and contain 0.70 mole of

H_{2}

at 0.5 atm. One of the flasks is then immersed into a hot bath, kept at

127^{\circ} C

, while the other remains at

27^{\circ} C

. The final pressure is atm.

Q. Two flasks of equal volume are connected by a narrow tube (of negligible volume) all at

27^{\circ} C

and contain 0.70 moles of

H_{2}

at 0.5

a t m

. One of the flask is then immersed into a bath kept at

127^{\circ} C

, while the other remains at

27^{o} C

. The number of moles of

H_{2}

in flask 1 and flask 2 are :

Join BYJU'S Learning Program

Two flasks of equal volume are connected by a narrow tube (of negligible volume) all at 27oC and contain 0.70 mol of H2 at 0.5 atm. One of the flask is then immersed into a bath kept at 127oC, while the other remains at 27oC. The final pressure in each flask is:

Two flasks of equal volume are connected by a narrow tube (of negligible volume) all at $27^{o} C$ and contain $0.70 m o l$ of $H_{2}$ at $0.5 a t m$ . One of the flask is then immersed into a bath kept at $127^{o} C$ , while the other remains at $27^{o} C$ . The final pressure in each flask is: