single choice Select the correct statement about batch equilibrium test A. Through batch equilibrium test, a...

single choice

Select the correct statement about batch equilibrium test
A.   Through batch equilibrium test, a breakthrough curve can be obtained.
B.   A large soil sample is used in the batch equilibrium test.
C.   The transit time can be determined through batch equilibrium test.
D.   Sorption isotherm can be obtained through batch equilibrium test.

Select the incorrect statement about phased approach for the site characterization
A.   A fixed work plan must be strictly followed in the phased approach.
B.   The on-site interpretation of obtained data can be conducted in the phased approach.
C.   A fixed offsite laboratory is needed for the chemical analysis on the collected samples
D.   Compared with phase I, same sampling strategy, field investigation method and
analytical methods are adopted in phase II and subsequent phases.

Expert Solution

Q. 1 Option D is correct. Batch equibirium test is done to observe adsorption of chemicals on soil samples (hardly 50 to 200 gm maximum). Sorption Isotherm are plotted in this test to analyse the variation of the adsorption with respect to equilbirium concentration. No breakthrough curve is obtained from this test. Soil sample in small quantities are done. In this test transit time is not studied, only sorption capacity is,studied.

Q.2. Option B is incorrect in respect of phase approach. In phase approach data obtained at site is first processed and analysed and then iterpreted. This is not done on site. All other options are correct.A fixed work plan must be strictly followed in the phased approach. A fixed offsite laboratory is needed for the chemical analysis on the collected samples. All the samples are sent to this laboratory for analysis. Same approach of testing is adopted in each phase in phased approach.

Ally Wells answered 11 months ago

single choice Select the incorrect statement about phased approach for the site characterization A. A fixed...

single choice Select the incorrect statement about phased approach for the site characterization A. A fixed work plan must be strictly followed in the phased approach. B. The on-site interpretation of obtained data can be conducted in the phased approach. C. A fixed offsite laboratory is needed for the chemical analysis on the collected samples D. Compared with phase I, same sampling strategy, field investigation method and analytical methods are adopted in phase II and subsequent phases. Which of the...

The following statements are about variable life insurance. Select the answer choice containing the correct statement....

The following statements are about variable life insurance. Select the answer choice containing the correct statement. The insurance company alone assumes the investment risk for variable life insurance policies. Variable life insurance policies offer policyowners guaranteed investment earnings and minimum cash values. Assets representing policy reserves of variable life insurance policies are placed in investment accounts that are kept separate from the insurance company’s general investment account. The death benefit provided by a variable life insurance policy remains constant throughout...

Select all of the correct statements about equilibrium from the choices below. At equilibrium the rates...

Select all of the correct statements about equilibrium from the choices below. At equilibrium the rates of forward and reverse reactions are equal. As a reaction proceeds forward toward equilibrium the product concentrations rise. At equilibrium no more reactants are transformed into products. As a reaction proceeds forward toward equilibrium the forward rate drops. At equilibrium the rate of change of reactant concentration is zero. At equilibrium all reactions stop.

Select all of the correct statements about reaction quotients and equilibrium constants from the choices below....

Select all of the correct statements about reaction quotients and equilibrium constants from the choices below. A reaction quotient equals the equilibrium constant at equilibrium. K changes as temperature changes, but is independent of concentrations. If Q = K the reaction is already at equilibrium. A reaction quotient is the same as an equilibrium constant. The richer a reaction mixture is in product the higher its Q value is. As a reaction approaches equilibrium its Q value rises and its...

Which statement about the rule of law and economic growth is correct? Select the best answer....

Which statement about the rule of law and economic growth is correct? Select the best answer. Any amount of money that individuals own is their property, and they can use it however they want (within legal parameters). The only factor of economic growth is the constant increase in power-driven machinery and, therefore, increase in production. The definition of property includes physical property only.

Select the correct statement about the hormonal events of the ovarian cycle A. High estrogen levels...

Select the correct statement about the hormonal events of the ovarian cycle A. High estrogen levels result in a surge of LH release. B. The LH surge stimulates further development of the secondary oocyte C. Rising levels of estrogen start follicle development D. The follicle begins to secrete progesterone in response to estrogen stimulation

Which statement is true about the differences between the endocrine and nervous systems? Select all correct...

Which statement is true about the differences between the endocrine and nervous systems? Select all correct answer choices. a. The endocrine system can create signals that last longer than the signals produced by the nervous system. b. The nervous system creates slower transmitting signals compared to the signals of the endocrine system. c. An endocrine cell can potentially reach more target cells with its signals than one neuron.

Which statement is not correct about internal force? Select one: a. Internal forces describe the stress...

Which statement is not correct about internal force? Select one: a. Internal forces describe the stress and strain inside a body, whereas external forces are applied onto the body by its surroundings. b. Shear force acts in the axial direction of a beam and tends to make the beam grow shorter or longer. c. Bending moment is a reaction produced by the inside of a beam when forces are applied to make it bend. d. There are three types of...

Which statement about sponges is correct?

1.Which statement about sponges is correct?Sponges have two germ layers, which give rise to well-organized tissues.Sponges can only reproduce asexually by fragmentation or budding.Most sponges have bilateral symmetry.Sponges belong to the group of invertebrates known as cnidarians.Sponges are filter feeders.2. Which are invertebrate chordates?tunicates onlylancelets onlyjawless fishes onlytunicates and lancelets but not jawless fishestunicates, lancelets, and jawless fishes

4. Which of the following statement about chaperones is TRUE? (0.2 pt) Please select the single...

4. Which of the following statement about chaperones is TRUE? (0.2 pt) Please select the single best answer and explain why other answers are wrong (0.8 pt). HSP100 unfolds misfolded proteins and degrade them. HSP100 activity requires the ubiquitination of the client proteins. HSP100, but not HSP70, requires ATP to execute their chaperones functions. HSP70 binds to client proteins through electrostatic interactions. HSP70 can deliver client proteins to other chaperones.

Question