Fundamentals of Forest Products Chemical Processing 林產化工專業(yè)英語智慧樹知到期末考試答案2024年

FundamentalsofForestProductsChemicalProcessing林產化工專業(yè)英語智慧樹知到期末考試答案2024年FundamentalsofForestProductsChemicalProcessing林產化工專業(yè)英語Naturalrubbercomesfromthemilkysapofatropicaltree.

A:正確B:錯誤答案:正確Furfuralisexclusivelyproducedfromlignocellulosicbiomassbydehydratingpentose.

A:正確B:錯誤答案:正確Theproductionofnanocellulosecanhelptheissueofgreenhousegasemission.

A:正確B:錯誤答案:正確Cellulosehydrogelscanbepreparedfromacellulosesolutionthroughphysicalcross-linking.

A:錯誤B:正確答案:正確Flavonoidsgenerallyoccurinplantsasglycosylatedderivatives.

A:正確B:錯誤答案:正確Whenheatingaliquidinatest-tube,weneedpointthetest-tubeawayfromotherpeople.

A:正確B:錯誤答案:正確Onthebasisofthecross-linkingmethod,thehydrogelscanbedividedintochemicalgelsandphysicalgels.

A:錯誤B:正確答案:正確Thethermochemicalconversionprocessusesheattobreakdownbiomassintointermediates,suchasgasorbio-oilthatcanbeupgradedintofuelandotherproducts.

A:正確B:錯誤答案:正確Alkanesareunsaturatedhydrocarbons.

A:錯誤B:正確答案:錯誤Pretreatmentwithdiluteacidhaslittleeffectonlignin.

A:正確B:錯誤答案:錯誤Beforeenteringthepapermachine,waterisaddedtothepulpslurrytomakeathinmixturenormallycontaininglessthan5percentfiber.

A:對B:錯答案:錯Phosphoricacidcannotbeusedtopreparecrystallinecellulosenanoparticles.

A:正確B:錯誤答案:錯誤Thepillsandmedicineweuseareallmadefromchemicals,thataretheretomakeourbodystrongerandtokillvirusesandbacteria.

A:正確B:錯誤答案:正確Insomecases,momentum,heat,andmasstransferalloccursimultaneously.

A:正確B:錯誤答案:正確Thebasicflavonoidstructureistheflavannucleus,whichconsistsof15carbonatomsarrangedinthreerings(C6-C3-C6).

A:錯誤B:正確答案:正確Alcoholsexhibithydrogenbonding.

A:對B:錯答案:對Theseparationoperationcalleddistillationutilizesvaporandliquidphasesatessentiallythesametemperatureandpressureforthecoexistingzones.

A:錯誤B:正確答案:正確AssociationbetweenligninmoleculesincreasedwithincreasingligninconcentrationunderaqueousconditionsofpH13and14.

A:錯誤B:正確答案:正確Inreactionwithlime,thecolorofthejuicedoesnotchange.

A:正確B:錯誤答案:錯誤Momentumtransfertakesplacebetweenthefluidelementswhicharemoving

atdifferentvelocities.

A:錯誤B:正確答案:正確Intheprocessofliquid-liquidextraction,theliquid-mixturefeedandsolventaremiscible.

A:錯誤B:正確答案:錯誤Thecellulosemicrofibrilsonlyhavecrystallineregions.

A:正確B:錯誤答案:錯誤Thehydroxylmoietiesonthecellulosechainwerethemainreactivegroups.

A:正確B:錯誤答案:正確Lignocellulosicbiomasscanbetransformedintobioethanolviatwodifferentapproaches,biochemicalorthermochemicalconversion.

A:錯誤B:正確答案:正確Inthelaboratory,themostbasicformoffiltrationisusinggravitytofilteramixture.

A:錯誤B:正確答案:正確Plantoilsaretriglycerides,tri-estersofglycerolwithlongchainfattyacids,withvaryingcompositionoffattyacidsdependingontheplant,thecrop,theseason,andthegrowingconditions.

A:錯誤B:正確答案:正確Thedegreeofunsaturation,whichcanbeexpressedbytheiodinevalue(amountofiodineingthatcanreactwithdoublebondspresentin100gofsampleunderspecifiedconditions).

A:正確B:錯誤答案:正確Thebleachingstepisnecessaryinthepulpingandpapermakingprocess.

A:正確B:錯誤答案:錯誤Inthepapermakingprocess,thefirststepisrefining.

A:錯誤B:正確答案:正確ThemassingramofonemoleofacompoundisequaltothemolecularweightofthecompoundinAtomicMassUnits.

A:錯誤B:正確答案:正確Theperiodictableisjustacommontable.

A:對B:錯答案:錯Hydrothermalmodificationwasuniversallyusedforlignindegradation.Frequently,somewaterwasaddedtomakethesystemmorehomogeneous.

A:正確B:錯誤答案:錯Whentwoobjectsatdifferenttemperaturesarebroughtintothermalcontact,heatflowsfromtheobjectatthehighertemperaturetothatatthelowertemperature.

A:錯誤B:正確答案:正確Acombustionreactionisanendothermicreaction.

A:錯誤B:正確答案:錯誤Esterificationispossiblytheeasiestofthereactionstoproducelignin-basedpolyestersthatinvolvethehydroxylgroupsoflignin.

A:錯誤B:正確答案:正確Hemicelluloseandcellulosefollowthesamebiosyntheticroutes.

A:正確B:錯誤答案:正確Modificationsonhydroxylgroupscanleadtotheformationofpolyolderivativesoflignin.

A:錯誤B:正確答案:正確Biochemicalpretreatmentismainlyusedtoovercomerecalcitrantmaterialandincreasesurfaceareatooptimizecelluloseaccessibilitytocellulases.

A:正確B:錯誤答案:正確Itisclearthatgoodyieldandhighpurityareimportantobjectivesinoperatingacrystallizationprocess,butthesetwofactorsa