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The surface tension of water of 20^(@) i...

The surface tension of water of `20^(@)` is 72.75 dyne `cm^(-1)` . Its value in SI system is

A

2.275 `Nm^(-1)`

B

0.7275 `Nm^(-1)`

C

0.07275 `Nm^(-1)`

D

None of the above

Text Solution

Verified by Experts

The correct Answer is:
C
PV=nRT , 1` xx` 22.4 = n`xx` 0.082 `xx` 303 , n= 0.90 mol
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Knowledge Check

  • The surface tension of a liquid in CGS system is 45 dyne cm^(-1) . Its value in SI system is

    A
    `4.5 Nm^(-1)`
    B
    `0.045 Nm^(-1)`
    C
    `0.0045 Nm^(-1)`
    D
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    A
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    B
    `219` dynes `cm`
    C
    `921` dynes `cm`
    D
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    A
    `10^(-4) Nm^(-1)`
    B
    `10^(5) Nm^(-1)`
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