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Question

If 500 ml of a gas 'A' at 1000 torr and 1000 ml of gas 'B' at 800 torr are placed in a 2 L container the final pressure will be -

A.

100 torr

B.

650 torr

C.

1800 torr

D.

2400 torr

Answers (1)

best_answer

Given    PA = 1000 tarr, VA= 500 ml

             PB = 800 tarr,   VB = 1000 ml 

           VTotal = 2000ml

Now, As we know

P_{A}V_{A}+P_{B}V_{B}= P_{Total}V_{Total}

So,

P_{Total}= \frac{P_{A}V_{A}+P_{B}V_{B}}{V_{Total}}=\frac{1000\times 500+800\times 1000}{2000}=\frac{1300}{2}=650tarr

Hence final pressure is 650 tarr.

 

Posted by

Pankaj Sanodiya

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