Answer / mech idiot

In automobile catalytic converter is used to reduce the
exhaust gases toxic. CO, HC, N are the major pollutant of
exhaust gases.
In petrol engine, it is used to reduce the pollutant like
CO, HC, N convert into CO2, H20, N2 by using catalyst like
platinum, metal rhodium.
In diesel it is used to reduce only CO, HC into CO2 and H2O.

Answer / tarun kumar

In case of gasoline engine catalystic convertor oxidises NO
present in the exhaust gases to NO2.
In case of diesel engine it removes the solid particulates
present in the exhaust gas.

Answer / anwar ashwak hussain

as the fuel having harmful
S,N2 etc.. upon combustion of
this fuel leads to produce
SO2, NO,CO n other
dangerous gases to reduce
their effect we have to
change these gases to SO3,
NO2, CO2,water vapor etc. by
using platinaum, rhodium like
catalyst to safe guard the
environment.

Calculate the cooling duty, H required to condense and cool acetone from 100 degree Celsius to 25 degree Celsius at atmospheric pressure. The heat of vaporization for acetone at its normal boiling point is 30.2 kJ / mol. The boiling point of acetone at atmospheric pressure is 56 degree Celsius. The flowrate of acetone through the condenser is 100 mol / s = N. Value of sensible heat needed to increase the temperature of acetone in liquid form from 25 to 56 degree Celsius is 4.06 kJ / mol. Value of sensible heat needed to increase the temperature of acetone in vapor form from 56 to 100 degree Celsius is 3.82 kJ / mol. Unit of H is kJ / s.

1 Answers  

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