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A constant pressure gas thermometer has ...

A constant pressure gas thermometer has a volume of 200cc, 273.2cc and 525 .1cc at 0°C, 100°C and boiling point of sulphur respectively. The resistance possessed by a platinum wire at the same temperatures as above are `2.000 Omega, 2.778 Omega and 5.280 Omega` respectively. Estimate the boiling point of sulphur on the basis of the two sets of observations.

Text Solution

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The correct Answer is:
444.1°C, 421°6C
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A constant pressure gas thermometer has a volume of 200cc, 273.2cc and 525.1cc at 0^(@) C , 100°c and boiling point of sulphur respectively. The resistance possessed by a platinum wire at the same temperatures as above 2.00 Omega , 2.778 Omega and 5.280 Omega respectively. Estimate the boiling point on the basis of two sets of observations.

Two parallel rails with negligible resistance are 10.0cm apart. They are connected by a 5.0 Omega resistor. The circuit also contains two metal rods having resistances of 10.0 Omega and 15.0 Omega along the rails. The rods are pulled away from the resistor at constant speeds 4.00 m/s and 2.00 m/s respectively. A uniform magnetic field of magnitude 0.01 T is applied perpendicular to the plane of the rails. Determine the current in the 5.0 Omega resistor.

Knowledge Check

  • Passage-II : A student uses a constant volume gas thermometer measures the triple point of water at 0.01°C to be 4.5 xx 10^(4) xx Nm^(-2) and the pressure at the boiling temperature of water at 100! to be 6 xx 10^(4) "Nm"^(-2) . Using this information and assuming that the pressure varies linearly with temperature, answer the following questions. So as to observe the nature of the gas, the student performs measurements with thermometers having different gases. The student finds that:

    A
    Measurements are almost independent of the nature of the gas, if the gas pressure is low and the temperature is well above the temperature at which the gas liquefies.
    B
    Measurements are almost independent of the nature of the gas, if the gas pressure is low and the temperature is well below the temperature at which the gas liquefies.
    C
    Measurements are almost independent of the nature of the gas, if the gas pressure is high and the temperature is well above the temperature at which the gas liquefies.
    D
    Measurements are almost independent of the nature of the gas, if the gas pressure is high and the temperature is well below the temperature at which the gas liquefies.

  • If aqueous solution contains 9% and 1% (W//W) of two non- volatile non- electrolytes X (molecular weight 180) and Y (mulecular weight 50 ) respectively the boiling point of solution in .^(@)C approximately is (k_(b) = 0.52 kg mol^(-1))

    A
    101.4
    B
    100,4
    C
    102.4
    D
    100.8

  • Passage-II : A student uses a constant volume gas thermometer measures the triple point of water at 0.01°C to be 4.5 xx 10^(4) xx Nm^(-2) and the pressure at the boiling temperature of water at 100! to be 6 xx 10^(4) "Nm"^(-2) . Using this information and assuming that the pressure varies linearly with temperature, answer the following questions. Which of the following statements is/are correct

    A
    The Celsius temperature at which the pressure of the gas will be zero is nearly -300°C
    B
    Celsius temperature of the absolute zero determined by the student will be nearly -300°C
    C
    Using this thermometer, the pressure measured by the student when the Celsius temperature at `50^(@) "C"` is `5.25 xx 10^(4) "Nm"^(-2)`
    D
    Using this thermometer, the pressure measured by the student when the Celsius temperature at `50^(@) C` is `5.75 xx 10^(4) "Nm"^(-2)`

    • Similar Questions

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    A silver wire has a resistance of 2.1 Omega at 27.5^@C , and a resistance of 2.7 Omega at 100^@ C. Determine the temperature coefficient of resistivity of silver at 27.5^@ C.

    A silver wire has a resistance of 2.1 Omega at 27.5^(@)C , and a resistance of 2.7 Omega at 100^(@)C . Determine the temperature coefficient of resistivity of silver.

    A silver wire has a resistance of 2.1 Omega at 27.5^(@)C and a resistance of 2.7 Omega at 100^(@)C . Determine the temperature coeff. Of resistivity of silver.

    A platinum resistance thermometer is constructed which reads 0^(@) C at ice point and 100^(@) C at steam point. The resistance of platinum coil varies with t as R_(1) = R_(0) (1+ alpha t + beta t^(2) ) . If t_(p) denotes temperature on the platinum resistance thermometer and t denotes temperature on mercury scale. Then resistance as the function of t_(p) will be:

    Passage-II : A student uses a constant volume gas thermometer measures the triple point of water at 0.01°C to be 4.5 xx 10^(4) xx Nm^(-2) and the pressure at the boiling temperature of water at 100! to be 6 xx 10^(4) "Nm"^(-2) . Using this information and assuming that the pressure varies linearly with temperature, answer the following questions. Pressure of a given gas is directly proportional to the temperature on the Kelvin scale. Which of the following is correct?

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