Question

$ATTENTION PLS$

a gas occupied a volume of 250 ml at 25° calculate volume at 0°? ........
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Answer 1

Answer:

Question

A gas occupies a volume of 250 ml at 745 mm Hg and 25 ∘ C. What additional pressure is required to reduce the gas volume to 200 ml at the same time?

Answer

Given: P1= 745 mm Hg

V1 =250 ml

V2 =200 ml

∴ By Boyle's law as the temperature is constant.

••••••••••

=

200

745×250

=931.25 mm Hg

=931.25 mm Hg

Additional pressure required

=931.25−745=186.25 mm

186.25 mm⠀

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