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konichiwa2x (2342)

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A flask containing air at 7degree celcius at atmospheric pressure is corked up. A pressure of 2.5 atmospheres inside the flash would force the cork out. The temperature at which it will happen is:
 
(A) 67.5C
(B) 75K
(C) 57.7C
(D) 670 C

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catch_arnnie (521)

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is the ans. D) ??

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konichiwa2x (2342)

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no its B..

Guide to latex:
http://www.goiit.com/posts/list/community-shelf-a-guide-to-latex-48056.htm

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catch_arnnie (521)

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see, this looks like more of a gaseous state question than a mechanics one...

i just did P1/T1=P2/T2 & it came close to 600 so, i thought ans. would be D)

neways, acc. to u i'm wrong so, ne1 else who can do this...

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thevyzz (322)

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ans must be 427C
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joyfrancis (1504)

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hey arnnie I did the same thing as you and got the answer as 700K

which is not in any of the options ... you are so right in saying that it

is more of a gaseous state problem...and it is relevant too...since the bottle is
 
corked the number of moles and the volume of gas inside will surely remainn
 
const.

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catch_arnnie (521)

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d) option was closest to that so i asked whether d) was the correct ans. but unfortunately it isn't...

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konichiwa2x (2342)

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i did the same thing too.. maybe the book answer is wrong or maybe we are missing something
the question is from JPNP (IIT physics) book

Guide to latex:
http://www.goiit.com/posts/list/community-shelf-a-guide-to-latex-48056.htm

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