Question
Water that is held at a potential greater than $-1/3$ bar and that portion of the soil water that will drain freely from the soil by force of gravity is called :
The correct answer is
Gravitational water
Defining Gravitational Water in Soil
The question defines soil water held at a potential greater than $-1/3$ bar and subject to free gravitational drainage.
Key Soil Water Characteristics
- Potential: Expressed as $\text{Potential} > -\frac{1}{3} \text{ bar}$. This signifies loosely held water.
- Drainage: Moves freely under the force of gravity.
Correct Identification
Gravitational water is defined as the water in soils that drains freely via gravity. This occurs when the soil is saturated or near saturation, typically corresponding to water potentials greater than $-1/3$ bar. This water fills the larger soil pores.
Distinguishing Water Types
- Capillary water exists at potentials between $-1/3$ bar and $-31$ bars.
- Hygroscopic water is tightly bound to soil particles at potentials below $-31$ bars.
Based on the definition, the water type is Gravitational water.
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Important Questions from Miscellaneous
- Which of the following relationships is/are not true?
(A). Most probable velocity = $\sqrt{\frac{2RT}{M}}$
(B). PV = $\frac{3}{2}kT$
(C). Compressibility factor Z = $\frac{pV}{nRT}$
(D). Average kinetic energy of gas = $\frac{1}{2}kT$
Choose the correct answer from the options given below - Match List-I with List-II
List-I List-II Electronic Configuration First Ionisation energy (kJ mol$^{-1}$) (A). ns$^2$ (I). 2100 (B). ns$^2$np$^1$ (II). 1400 (C). ns$^2$np$^3$ (III). 800 (D). ns$^2$np$^6$ (IV). 900
Choose the correct answer from the options given below: - The shielding constant of a 2p electron (calculated using Slater's rules) is
- Match List-I with List-II
List-I List-II Spectroscopy Property (A). Raman (I). Polarizability (B). FTIR (II). Dipole Moment (C). UV-Visible (III). Absorbance (D). NMR (IV). Spin
Choose the correct answer from the options given below: - The structure of protein comprises of:
(A). Primary structure of protein is associated with amino acids
(B). Secondary structure of protein is associated to peptides
(C). Tertiary structure of protein is associated with polypeptide chains
(D). Quaternary structure of protein is associated with polypeptide chains
Choose the correct answer from the options given below:
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