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At a particular temperature, a certain q...

At a particular temperature, a certain quantity of gas occupies a volume of `74 "cm"^3` at a pressure of 760 mm. If the pressure is decreased to 740 mm, what will be the volume of the gas at the same temperaute ?

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In this case, `P_1 = 760 mm " " P_2 = 740 mm`
`V_1 = 74 cm^3 " " V_2` = ?
According to Boyle.s law, at constant temperature
`P_1 V_1 = P_2 V_2`
or `V_2= (P_1 V_1)/(P_2) = (760xx74)/(740) = 76 cm^3`
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