Science Quiz / yr1 chemistry (episode VI)

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Ket 4 breakfast

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HintAnswer
spread of molecular energies in gases is called the
catalyst of ozone depletion (2o3->
y axis of and IR spectra graph
pressure changes the position of equilibrium. The equilibrium changes in order to r_____ p_____ on the system
delta h is + or - for exothermic reaction
catalysts lower the E_____ R______
industrial priority (/3) less p_____
First technique in sequence of a compounds physical identification
a catalyst will increase the rate at which an e____ i_ e______
making product faster cuts c____
IR spectra of carboxylic acid COOH is very _____
c6h14->c6h12 + h2
each dip on an IR spectra graph is called a
IR breathalysers test for ____ of compounds in the breath
greater the value of Kc, then the greater concentration of ____ __ _____
units of transmittance
remote sensors used to analyse the IR spectra of vehicle ______
economic advantages outweigh costs of developing a c______
boltzmann distribution changes as a_____ e____ increase
at a higher temperature, the boltzmann distribution peak is _______
at the end of a catalysed reaction, the catalyst is
IR spectra range for C-H bonds
a catalyst may react with the reactant(s) to form an ___
industrial priority (/3) high e______
catalysts are n____ u____ u____ in a reaction
ozone depletion is an example of using cl radicals as a ________ catalyst
HintAnswer
IR breathalysers detect the characteristic absorbance of bonds present in _____
delta h is + or - for endothermic reaction
area under boltzmann distribution curve is the n____ o_ m_______
a catalyst offers an alternative r____ r_____ and lowers Ae
a homogenous catalyst ______ with the substrate
Second technique in sequence of a compounds physical identification
catalytic converters have a large s____ ______
use of molecular ion peak from a mass spectrum to determine the molecular mass (Mr). Also uses molecular fragments to identify sections of molecule.
decreasing pressure shifts position of equilibrium to side with ___ moles
p_____ can be identified by their IR spectral fingerprints
increasing the pressure shifts the position of the equilibrium to the side with ____ moles
square brackets infer you are talking about the ____ of a substance
use of absorption peaks from IR spectrum- to identify bonds and functional groups present in the molecule
esterification (catalysed by h2so4) is an example of using a ______ catalyst
an ______ breaks down to give the product and regenerates the catalyst
in an IR spectrometer, the beam of IR radiation is in the range: cm^-1
at a higher temperature, the boltzmann distribution peak is at a h____ _____
IR spectra absorbance range of alcohols O-H
peaks are clearer outside with IR spectra region
use of percentage composition data to determine empirical formula
name of device that passes beam of IR radiation through captured breath
below 1500cm^-1 exists the _____ region
what value is Kc when equilibrium is half way
below ____cm^-1 there is the fingerprint region
hydrogenation of alkenes catalyst
catalysts of haber process
HintAnswer
__% of chemicals are produced using a catalyst
IR spectra of OH in alcohols can be confused with which other bond (in from x-y)
surface area of catalytic converters for h______ catalysis
fingerprint region contains ____ peaks to the molecule
industrial priority (/3) high a____ e______
if a chemical process requires less energy, then less f______ f______ have to be combusted
which value gives relative proportions of reactants and products in an equilibrium
increasing temperature favours the _______ reaction
pressure of a gas is proportional to its _________
IR spectra absorbance for aldehydes,ketones and carboxylic acids C=O
sulfur trioxide catalyst
Third technique in sequence of a compounds physical identification
when more reactants exist in an equilibrium than products then Kc is ____ than 1
a substance that changes the rate of reaction without undergoing permanent change
in IR spec, which functional group has several peaks
a heterogenous catalyst reacts with substrate forming an _____
break down of an intermediate _____ the catalyst
difficult to predict identity of a _____ ____ from the fingerprint region
a catalyst does not affect the p_____ o____ e_______
more IR radiation absorbed from the breathalyser then the more ______ in the breath
a catalyst may provide a_____ on which the reaction can take place
a ____ catalyst has the same physical state as the reactants
when more products exist in an equilibrium than reactants Kc is ____ than 1
a catalyst speeds up both directions in a reversible reaction e_____
IR spectra of COOH carboxyl group in carboxylic acids. Range:
name of aA +bB -> cC + dD (reversible reaction)

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