Multiple Choice
A substance is allowed to diffuse along a 10-cm length of tubing filled with water.The cross section of the tube is 5.3 cm2.If the diffusion coefficient is 5.0 × 10¯10 m2/s,and 6.5 × 10¯14 kg is transported along the tube in 16 s,what is the difference in the concentration levels of the substance at the two ends of the tube?
A) 3.9E-1 kg/m3
B) 4.3E-2 kg/m3
C) 1.5E-3 kg/m3
D) 8.1E-4 kg/m3
Correct Answer:
Verified
Correct Answer:
Verified
Q77: If the column of mercury in a
Q78: Water (density = 1.00 × 10<sup>3</sup> kg/m<sup>3</sup>)flows
Q79: An ice cube with a small solid
Q80: What volume of water is displaced by
Q81: Water comes down the spillway of a
Q83: A hole is poked through the metal
Q84: The quantity "pressure" expressed in terms of
Q85: A jet of water flowing from a
Q86: In a large tank of liquid,the hydrostatic
Q87: Water pressurized to 3.00 × 10<sup>5</sup> Pa