Two one-liter containers each contain 10 moles of a gas. The temperature is the same in both containers. Container A holds helium (molecular mass = 4 u), and Container B holds oxygen (molecular mass = 16 u). Which container has the higher pressure and by what factor?
a. Container A has 4 times the pressure of Container B.
b. Container A has 2 times the pressure of Container B.
c. Both containers have the same pressure.
d. More information is needed to answer this question.
c
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Negative temperature coefficients of resistivity
A) exist in superconductors. B) do not exist. C) exist in semiconductors. D) exist in conductors.
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Indicate whether the statement is true or false
A large plate carries a uniform charge density ? = 8.85 × 10-9 C/ m2. A pattern showing equipotential surfaces with a 5 V potential difference would appear as
A) a series of planes perpendicular to the plate, 1 cm apart. B) a series of lines perpendicular to the plate, 1 cm apart. C) a series of lines parallel to the plate, 1 cm apart. D) a series of circles of radius 1 cm, parallel to the plate. E) a series of planes parallel to the plate, 1 cm apart.
Intensity: A certain electromagnetic field traveling in vacuum has a maximum electric field of 1200 V/m. What is the maximum magnetic field of this wave? (c = 3.0 × 108 m/s)
A. 3.4 × 10-4 T B. 4.0 × 10-6 T C. 2.2 × 10-5 T D. 9.6 × 10-6 T E. 8.7 × 10-6 T