Two glass bulbs A and B are connected by a very small tube of negligible volume having a stop cock- Volume of bulb A is 100 cm 3 and it contains some gas- Bulb B is empty on opening the stop cock- the pressure dropped by 60 - The volume of Bulb B must beA- 100 cm 3B- 150 cm 3C- 200 cm 3D- 180 cm 3

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Standard XII

Physics

Ideal Gas Law

Two glass bul...

Question

Two glass bulbs A and B are connected by a very small tube of negligible volume having a stop cock. Volume of bulb A is 100 cm³ and it contains some gas. Bulb B is empty on opening the stop cock, the pressure dropped by 60%. The volume of Bulb B must be____.

100 cm³

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150 cm³

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200 cm³

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180 cm³

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Solution

The correct option is B
150 cm³

If V is the volume of B , the total volume after opening stopcock is (100 = V) $c m^{3}$

$100 \times P = \frac{⟮ 100 + V ⟯ \times 40 P}{100} \Rightarrow V = 150 c m^{3}$

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Two glass bulbs A and B are connected by a very small tube of negligible volume having a stop cock. Volume of bulb A is 100 cm3 and it contains some gas. Bulb B is empty on opening the stop cock, the pressure dropped by 60%. The volume of Bulb B must be____.

The correct option is B 150 cm3 If V is the volume of B , the total volume after opening stopcock is (100 = V) cm3 100×P=⟮100+V⟯×40P100⇒V=150 cm3

Two glass bulbs A and B are connected by a very small tube of negligible volume having a stop cock. Volume of bulb A is 100 cm³ and it contains some gas. Bulb B is empty on opening the stop cock, the pressure dropped by 60%. The volume of Bulb B must be____.

The correct option is B
150 cm³

If V is the volume of B , the total volume after opening stopcock is (100 = V) $c m^{3}$

$100 \times P = \frac{⟮ 100 + V ⟯ \times 40 P}{100} \Rightarrow V = 150 c m^{3}$