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At 27^(@)C, a certain mass of gas exerts...

At `27^(@)C`, a certain mass of gas exerts a pressure of 6 cm of Hg column. What will be the pressure (in cm of Hg) exerted when it is heated to `127^(@)C` at constant volume ?

Text Solution

Verified by Experts

The correct Answer is:
8
Here, `T_(1)=27+273=300K`
`P_(1)=6cm` of Hg col.
`T_(2)=127+273 = 400K, P_(2)=?`
as the gas is heated at constant volume,
`(P_2)/(P_1) =(T_2)/(T_1) , P_(2) = P_(1)xx(T_2)/(T_1)`
`=6xx400/300 = 8cm` of Hg col.
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Knowledge Check

  • At 27^(@)C a sample of ammonia gas exerts a pressure of 5.3 atm. What is the pressure when the volume of the gas is reduced to one-tenth of the original value at the same temperature ?

    A
    0.53 atm
    B
    5.3atm
    C
    53 atm
    D
    None of these

  • The atmospheric pressure on a certain day is 732 mm Hg . What is the pressure in kPa ?

    A
    `60 kPa`
    B
    `80.6 kPa`
    C
    `77.8 kPa`
    D
    `97.6 kPa`

  • What will be the volume of a given mass of a pressure of 50 cm of Hg., if the occupics 260 mL at a pressure of 98 cm of Hg keeping the temperature constant.

    A
    520ml
    B
    620ml
    C
    510ml
    D
    610ml