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gas laws..

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nid404:
1) An iron cylinder contains He at a pressure of  250KPa at 300K. the cylinder can withstand a pressure of 1X10^6 Pa. The room in which the cylinder is placed catches fire. Predict whether the cylinder will blow up before it melts or not.....

2) The density of a gas at 27 degrees celcius and 760mm pressure was found to be 3g/l. Find out the temperature at which the density will become 2.4g/l, keeping pressure constant


Please answer


Thanks :)

nid404:
okay I actually got the second one but want to confirm if it is 375K

Please answer the first one....astar..or adi and slvri

astarmathsandphysics:
In bed. Will answer when i get up.

nid404:
okay....take ur time :D

astarmathsandphysics:
1) An iron cylinder contains He at a pressure of 300K. the cylinder can withstand a pressure of 1X10^6 Pa. The room in which the cylinder is placed catches fire. Predict whether the cylinder will blow up before it melts or not.....

2) The density of a gas at 27 degrees celcius and 760mm pressure was found to be 3g/l. Find out the temperature at which the density will become 2.4g/l, keeping pressure constant

1/ the volume is constant since it is the volume of the room.
so
Much more borderline than before, but still I say it wont melt.I think it will not melt since the temp of the fire is typically up to 1000K so the pressure will be less than 10^6

2)P1/d1=P2/d2
temp will be 2.4/3 *300=240K

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