Temperature Scales || Mole and Avogadro Number || Phases and States OF Matter || Specific Heat

Define Avogadro number and mole. What is their importance ?

If temperature scale is changed from '^(@)C to '^(@)F , the numerical value of specific heat

A gaseous mixture contains an equal number of hydrogen and nitrogen molecules. Specific heat measurements on this mixture at a temperature below 150 K would indicate the value of the ratio of specific heats for the mixture as

One mole of an ideal gas at an initial temperature true of TK does 6R joule of work adiabatically. If the ratio of specific heats of this gas at constant pressure and at constant volume is 5//3 , the final temperature of the gas will be

The temperature vs time graph for two different gases A and B having same number of moles is as shown in figure. If heat is supplied by same rate to both the gases. Find ratio of specific heat capacity of both gases.

A new temperature scale uses X as a unit of temperature, where the numerical value of the temperature t_(x) in this scale is related to the absolute temperature T by t_(x) = 3T + 300 . If the specific heat of a material using this unit is 1400 J kg_(1)X_(1) its specific heat in the S.I. system of units is- c

The number of carbon atoms in exactly 12 g C^(12) is called Avogadro's number , N_(A) (6.022 xx 10^(23)) . One mole is the amount of material which contains Avogradro's number of particle. These definitions emphasize that the mole refers to a fixed number of NA^(+) b Avogadro's number of atoms , electrons to refer to a mole of helium , a mole of electrons , or a mole of NA^(+) by Avogadro's number of atoms, electrons or ions respectively. On the other hand, phrases like "one mole of hydrogen" can be ambiguous , and should be restated as "one mole of hydroden atoms" or " one mole fo hydrogen molecules." But it is a matter of common practice among chemists , however , to let the name of the element stand for its mos common form. Thus one mole of O_(2) is frequently referred to as one mole of oxygen , whereas one moles of O is called one mole of oxygen atoms. Suppose if we take one mole molecules fo H_(2)SO_(4) then it contain 2 moles of H atom 1 mole of S atom and 4 moles of O atom. It can also be said that moles of oxygen molecules is (4)/(2) =2 mole. According to common practise , if you have Avogadro number of hydrogen molecules, then its mass is equal to :