1) A vessel contains a mixture of of7g of nitrogen and 11 g of carbondioxide at temperature 290 kelvin,if the pressure of the mixture is 1atm then caluculate its density?
ans:1.5kg per metre cube
2) The density of at 27c temperature and 760mm pressure was foound to be 3.0gm/litre
find out the temperature at which the density becomes 2.4gm/litre,keeping the pressure constant
ans: 375k
3)A given sample of gas occupies 30ml at acertain tempereature and pressure . what volume would would half this mass of gas occupies at triple the absolute temperature if the pressure were 1/9ths that of original gas?
ans: 405ml
4) an helium atom at 25c is released from the surface of the earth to travel upwards . Assuming that it undergoes no collisions with other molecules how long will it travel before coming to rest?
ans:95300mts
5)In certain region of space there are only 5 molecules per cm cube on an average .the temperature there is 3 kelvin .What is the average pressure of very dilute gas?
ans:2.07 into 10 power -16 pa
6)some aerosl springs explodes if their internal pressure exceeds 3 atm .If an aerosal an pressure of 2.2 atm at 24c ,at what temperature will its pressure equal to 3 atm?
ans: 405kelvin
7)A manomertic fluid dibutyl pthalate has density 1.047 into 10 power 3 kg per metre cube . what pressure of the liquid of 1mm height suggest?
ans:0.077 torr
8)5ml of water at 4c (density 1g/ml) is converted into steam at 110c. pressure remaining normal what volume wil the steam occupy?
ans: 8.726litre
9) a meterelogical baloonhas aradius of 1m when released from sealevel at normal pressure Pand 25c has expanded to aradius of 3 m when it has risen to maximum altitude where temperature is -20c . what is the pressure inside the baloon at that height?
ans:0.031 atm
10)Certain thin walled glass bottles generally withstand apressure difference across their walls of 1.25atm before they burst. Atypical such bottle is sealed on the day when the temperature is 68f and the pressure is 0.98 atm and it is immediately heated in oven , Estimate the temperature in degrees fahrein heay at which it will explode?
ans:249.95f
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