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a single-effect evaporator is used to concentrate 60000 kg h-1 of a 40 wt naoh solution which is fed to the evaporator at 40degc the
ammonia is oxidised with air to form nitric oxide in the first step to produce nitric acid the reaction occurs in a well insulated continuous
a well-insulated electric water heater warms 109 kg of water from 200degc to 490degc in 250 min find the resistance of its heating element which is
what is the fractional change in the resistance of an iron filament when its temperature changes from 250degc to
an iron wire has a cross-sectional area equal to 500times10-6m2 carry out the following steps to determine the drift speed of the conduction
in certain ranges of a piano keyboard more than one string is tuned to the same note to provide extra loudness for example the note at 110 hz has two
a standing wave is described by the wave function where x and y are in meters and t is in seconds a prepare graphs showing y as a function of x
two travelling sinusoidal waves are described by the wave functionsy1 5500 sinpi400x - 1200ty2 5500 sinpi400x - 1200t - 0250where x y1 and y2 are
on a picnic outing 2 two-person teams are playing hide-and-seek there are four hiding locations a b c and d and the two members of the hiding
kinematic chain refers to an assembly of rigid bodies connected by joints that is the mathematical model for a mechanical system as in the familiar
due to surface tension water molecules tend to have minimum surface area and sphere has the minimum surface area for a given volume and therefore
in ch2cch2it is given that the length between h of first carbon at top and h of last carbon at top is l1 and length between h of first carbon at top
the difference between an ideal gas and a real gas is that real gases will not strictly follow the laws established for ideal gases because of
ch3cooh ethanoic acid nh3 ------------ gt ch3coonh4 heat ---------- gt ch3conh2 methyleamine
a radiation of 500nm is incident on a metal surface whose work function is 3evwhy do we not observe the phenomenon of photoelecric effect ans we do
why was covalent compounds are insoluble in water and ionic compounds soluble in waterans when ionic bonds form one atom becomes positively charged
what are the major poisnous gases released during burning of the plastic substances ans it is high time that we start taking concrete steps in
if a negative charged particle enters a magnetic field perpendicularlythen it follows a circular pathin what directn does the particle move---in
ellie uses 125 pounds of potatoes to make mashed potatoes she uses one-tenth as many pounds of butter as potatoes how many pounds of butter does
i am finishing a quadratic equation problem and i am left with 3 plus or minus the square root of 361 all over 2 what
b the arity of an operator in propositional logic is the number of propositional variables that it acts on for example binary operations eg
health food online storein todays world when almost everything has become easy with just a click on the mouse even shopping for normal groceries has
let be the set of all divisors of n construct a hasse diagram for d15 d20d30 check whether it is a lattice or complement
what is a set explain various methods to represent a set in set theorydefine the following with the help of suitable examples i
a constant force of 10n is applied perpendicular to rod placed on 2 parallel rails if the rod is having a resistance 10ohm but rails have zero