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Two glass bulbs A and B are connected by very small tube having a stop cock. Bulb A has a volume of 100 ml and contained the gas while bulb B was empty and had a volume of 150 ml. On opening the stop-cock, the pressure of the gas in bulb A will fall down to
  • a)
    80%
  • b)
    60%
  • c)
    40%
  • d)
    20%
Correct answer is option 'C'. Can you explain this answer?
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Two glass bulbs A and B are connected by very small tube having a stop...
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Two glass bulbs A and B are connected by very small tube having a stop...
Explanation:

When the stopcock is opened, the gas in bulb A will start to flow towards bulb B. As bulb B is initially empty, the gas will occupy its volume as well. Therefore, the final volume of the gas will be 100 ml + 150 ml = 250 ml.

Using the ideal gas law, we can relate the pressure of the gas before and after the stopcock is opened:

P1V1 = nRT1

P2V2 = nRT2

where P1 and P2 are the initial and final pressures of the gas, V1 and V2 are the initial and final volumes of the gas, n is the number of moles of the gas, R is the universal gas constant, and T1 and T2 are the initial and final temperatures of the gas (assuming they remain constant).

Since the number of moles and temperature of the gas are constant, we can simplify the above equations as:

P1V1 = P2V2

Solving for P2, we get:

P2 = (P1V1) / V2

Substituting the given values, we get:

P2 = (P1 * 100) / 250

P2 = (2/5)P1

Therefore, the pressure of the gas in bulb B will be 40% of the initial pressure in bulb A. Hence, the correct option is C.
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Community Answer
Two glass bulbs A and B are connected by very small tube having a stop...
In both cases number of moles neutral per unit volume is same so ∆T is same in both cases
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Two glass bulbs A and B are connected by very small tube having a stop cock. Bulb A has a volume of 100 ml and contained the gas while bulb B was empty and had a volume of 150 ml. On opening the stop-cock, the pressure of the gas in bulb A will fall down toa)80%b)60%c)40%d)20%Correct answer is option 'C'. Can you explain this answer?
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Two glass bulbs A and B are connected by very small tube having a stop cock. Bulb A has a volume of 100 ml and contained the gas while bulb B was empty and had a volume of 150 ml. On opening the stop-cock, the pressure of the gas in bulb A will fall down toa)80%b)60%c)40%d)20%Correct answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Two glass bulbs A and B are connected by very small tube having a stop cock. Bulb A has a volume of 100 ml and contained the gas while bulb B was empty and had a volume of 150 ml. On opening the stop-cock, the pressure of the gas in bulb A will fall down toa)80%b)60%c)40%d)20%Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two glass bulbs A and B are connected by very small tube having a stop cock. Bulb A has a volume of 100 ml and contained the gas while bulb B was empty and had a volume of 150 ml. On opening the stop-cock, the pressure of the gas in bulb A will fall down toa)80%b)60%c)40%d)20%Correct answer is option 'C'. Can you explain this answer?.
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