NF 3

The figure below shows a flownet for the condition of a line of sheet-piling driven into a stratum of homogenous sandy soil. Determine the number of flow lines and equipotential lines.

• Nf = 4, Nd = 14

• Nf = 5, Nd = 13

• Nf = 4.5, Nd = 13

• Nf = 4.5, Nd = 14

Tags

NGSS.HS-ETS1-3

Determine the quantity of seepage.

What is the chemical formula for nitrogen trifluoride?

Which of the following is a property of nitrogen trifluoride?

• Colorless gas

• Highly flammable

• Liquid at room temperature

• Metallic solid

What is the molecular geometry of nitrogen trifluoride?

• Trigonal planar

• Tetrahedral

• Trigonal pyramidal

• Linear

In which type of chemical reaction is nitrogen trifluoride commonly involved?

• Combustion

• Decomposition

• Synthesis

• Redox

What is the primary use of nitrogen trifluoride in industry?

• Refrigerant

• Cleaning agent in electronics

• Fertilizer

• Fuel

Which element is more electronegative in nitrogen trifluoride?

• Nitrogen

• Fluorine

• Both have equal electronegativity

• Neither

What is the bond angle in nitrogen trifluoride?

• 109.5 degrees

• 120 degrees

• 107 degrees

• 90 degrees

How many lone pairs of electrons are present on the nitrogen atom in nitrogen trifluoride?

• 0

• 1

• 2

• 3