3 Ionic ConductivityA container filled with air at room temperature and pressure is exposed to a beam of X-rays which ionizes a small fractionof the molecules inside. The negative ions are actually 0, molecules with an extra electron. For the purposes of thisproblem, however, you may treat all the molecules as having the same molecular weight, somewhere between that of O,and N2.Let the box be 10 cm x 10 cm x 2 cm. The two 10 cm x 10 cm faces are metal, whereas the rest of the box is made ofinsulating material. A potential of 1 kV is applied across the conducting ends causing a current of 1.5 µA to flow.(a) What is the conductivity of this weakly ionized gas?(b) If the mean collision time r is 2 x 10-10 s, what fraction of the molecules in the gas are ionized?(Assume equal numbers of positive and negative singly charged ions.)

Given Area of a cross-section of the box (A) = 10 cm × 2 cm = 20×10-4 m2 Voltage (V)…

Answered: A container filled with air at room…

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