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astarmathsandphysics:
Post your GCSE questions here to get the answers back asap from someone with 3 maths/physics degrees.

nid404:
I tried starting a new topic but it's not working for me. Anyways plz help me
The second part of the question needs help.
Q.The air in a bicycle tyre has a volume of 1000cm3 and a pressure of 2.5 atmospheres. If the air is released ( at the same temperature) so its pressure is 1 atmosphere, what is the volume of the air?

This part needs help

A bicycle has a volume of 100cm3 and is now used to pump up the tyre. After 1 stroke of the pump, what is the presure in the tyre?

Thanks

spookyjaransh:
the constant here is = (1000/2.5) =400.
there fore after 1 stroke the volume increases by 100 cm3, thus new volume = 1100.
but because the constant does not change, therefore, 1100/x = 400
=> x = 1100/400 = 2.75 atm.

astarmathsandphysics:
How did I miss this question for so long

~~~~shreyapril~~~~:
hm..!!
i guess you did not notice it!!
u are too busy person rite??

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