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The triple points of neon and carbon dio...

The triple points of neon and carbon dioxide are `24.57 K " and " 216.55 K` respectively. Express these temperatures on the Celsius and Fahrenheit scales.

Text Solution

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Neon : - `248.58 ^(@) C = - 415.44 ^(@) F , CO_(2) : - 56.60 ^(@) C = - 69.88 ^(@) F`
`("use " t_(F) = 9/5 t_(c) + 32)`
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Knowledge Check

  • The triple points of neon and carbondioxide are 24.57K and 216.55K respectively. Express these temperature on the celsius and Fahrenheit scales

    A
    `-50.2^(@) C-69.88^(@) F`
    B
    `-56.6^(@) C, -50.02^(@) F`
    C
    `-56.6C-69.88^(@) F`
    D
    `56.6C-69.88^(@) F`.

  • On Reaumur scale of temperature the melting point of ice and the boiling point of water are taken as 0^(@) R and 80^(@) R respectively. The freezing point and boiling point of mercury on Celsius scale are 39^(@) C and 367^(@) C respectively. Express these temperature on Reaumur scale.

    A
    `12.2^(@) R, 127^(@) R`
    B
    `41^(@) R, 290^(@) R`
    C
    `31.2^(@) R, 293.6^(@) R`
    D
    `71^(@) R, 293.6^(@) R`

  • A closed container of volume 0.02m^(3) contains a mixture of neon and argon gases, at a temperature of 27°C and pressure of 1 xx 10^(+5) Nm^(-2) . The' total mass of the mixture is 28gm. If the gram molecular weights of neon and argon are 20 and 40 respectively. Find the masses of the individual gases in the container, assuming them to be ideal. (Universal gas constant R = 8.314 J/mol.k)

    A
    `m_(1) = 4 gm, m_(2) = 24 gm`
    B
    `m_(1) = 8 gm, m_(2) = 24 gm`
    C
    `m_(1) = 4gm, m_(2) = 12gm`
    D
    `m_(1) = 6 gm, m_(2) = 12 gm`

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    The electrical resistance in ohms of a certain thermometer varies with temperature according to the approximate law: R = R_(0) [1 + alpha (T - T_(0))] The resistance is 101.6 Omega at the triple-point of water 273.16 K , " and " 165.5 Omega at the normal melting point of lead (600.5 K) . What is the temperature when the resistance is 123.4 Omega ?

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