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heat is the energy that is operated because of differences in temperature among the body and the surrounding the unit of heat energy is joulethe
the temperature of a body is measured indirectly by making use of the fact that certain physical property of a substance changes linearly with the
i open system - here the system boundary is like energy and matter can enter or leave the system freely infect the system boundary here is
normal 0 false false false en-in x-none x-none microsoftinternetexplorer4
all the given four laws may be written in one relation pv nrt mn rt this formula is known as deal gas equationwhere m mass of the
it is explaining that at similar temperature and pressure equivalent volumes of all gases contain similar number of
depression in freezing point - physical methods for non-volatile substances mol mass 1000 kf w w deltatwhere kf stands for molal depression
elevation in boiling point mol mass 1000 kb w w deltat in which kb stands for molal elevation constant of the solventw stands for mass of the
the ideal gas approximation the given assumptions are suppose while defining an ideal gasi the number of molecules in the gas is very hugeii the
physical methods for non-volatile substances the non-volatile organic compounds molecular mass can be ascertained by noting either the elevation in
hofmann method - determination of molecular massthe method is applied to those substances that are not stable at their boiling points but that may be
determination of molecular mass - victor meyer methodmolecular mass of volatile liquids and solids that can be easily ascertained from the
quantitative analysis - estimation of elements after qualitative analysis of elements the another step in the determination of molecular formula of
method for detection of elements - oxygenthere is no any type of satisfactory qualitative method for the detection of oxygen though its presence can
although conduction does occur in liquids and gases also heat is transmitting in these media mostly by convection in that phenomenon the real motion
method for detection of elements - phosphorusphosphorus is detected through fusing the organic compound along with sodium peroxide while phosphorus
beilstein test or copper wire test - halogensa clean copper wire is heated in the bunsen flame till it does not impart any type of green colour
heat may be transmitted from one body to the other by any of three possible ways conduction radiation and convection in the conduction convection
oxidation test - sulphur sulphur can as well be tested by oxidation test the organic compound is fused along with fusion mixture a mixture of sodium
whenever there is a relative speed among a source of sound and the listener the apparent frequency of sound listen by the listener is dissimilar from
the impression of sound heard by our ears persist in our mind for 110th of a second if another sound is heard before 110 second is over the
beat period the time interval among two successive beats is called as beat periodbeat frequency the number of beats given per second is called as
if the intensity of sound is maximum at time t 0 one beat is known as formed when intensity changes into maximum again after becoming minimum once
when two dissimilar sound rays of slightly different frequencies traveling in a phase along the same direction superimpose on one other the intensity
lassaigne methodthis is employed to detect halogen nitrogen and sulphur organic compounds are fused along with dry sodium in a fusion-tube and fused