Question

One litre of oxygen at a pressure of 2 atm is
compressed to a volume of 800 cm3.What
pressure is required? (keep temperature
constant
plsease anwer this question

Answer 1

Answer:

For oxygen , P1V1=P2V2

or, 1×1=P2×1orP2=1atm ..(i)

For nitrogen , P′1V′1=P′2V′2

or 0.5×2=P′2×1

or P′2=1atm

∴P=P2+P′2=1+1=2atm.

Explanation:

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Answer 2

Explanation:

the relationship between pressure and volume can be derived from boyles law as P1V1 =P2V2

HERE in the question the initial pressure P1 is 2atm

the initial volume is 1 L

the final volume V2 is 800cm^3 =.8L

we have to find the final pressure P2

from Boyles law

P1V1=P2V2

2×1=P2 ×.8

P2=2÷.8

P2=2.5 atm