Numerical of General Gas Equation And Gas Laws

Hand out #4.1.2

Q. 1Draw the plot from following data

Pressure (atm)	0.2	0.25	0.40	0.60	0.80	1.0
Volume (dm3)	112	89.2	56.25	37.40	28.1	22.4

(a)volume against pressure         (b)volume against inverse of pressure (1/p)  

Q.2 weather balloon has a volume of 175 dm³ when filled with hydrogen at pressure of 1.00 atm. Calculate the volume of the balloon where it rise to a height of 2000 m ‘where the atmospheric pressure is 0.800atm .Assume that the temperature is constant.   

Q.3 What is the volume of given mass of hydrogen at a pressure of 2.50 atm , if it is  volume is 3.15 dm³ at 1.00 atm

Q.4 A sample of oxygen has a volume of 880 ml and pressure of 740 torr .What addition pressure is required to reduce the volume to 440ml

Hand out # 4.2.1

  Q. 1Draw the plot  Volume and Absolute temperature  from following data

Temperature (K)	135	200	270	395	450	540
Volume (dm3)	250	372	500	731	838	1000

Q.2 A sample of helium of gas has volume of 520 cm³ at 373k . Calculate  the temperature  at which the volume will become 260 cm³ at constant pressure .

Q.3 A mass of Neon occupies 200cm³ at 100^oC .Find its volume at 0^oC the pressure    remain constant .

Q.4 Anesthetic gas is normally given a patients when the room temperature  is 20 ^oC  and the patient s body temperature is  37^o C. What   would this temperature change do to 1600ml of gas at constant  pressure and mass remain constant.

Q.5 What will be the volume at 450K of a gas which occupies 200cm³ at 300K the pressure remaining constant throughout.  

Q.6 A sample of oxygen gas occupies 250 cm³at 300K.What volumes it will occupy at 35^oC if there is no change in pressure. 

Hand out 4.4.1

Q.1 What is the final volume of one mole of nitrogen initially at S.T.P. If it is subjected to pressure of 2 atm and heated to a temperature   of 546 K

Q.2   7.0  gram of a gas at 300K and one atmospheric pressure occupies a volume of 4.1 dm³.What is molecular mass of gas .

Q.3 10.0 gram of oxygen gas are introduced in a vessel of 5 dm³ capacity at 27^oC.Calculate pressure of the gas in atmospheric pressure in the container.

Q.4 Two gas bulbs of the same size are mantainated  at same temperature .bulb “A “contain Carbon dioxide and bulb “B” Contain an equal mass of ethane .

(a)What is the ratio of the number of molecules in the bulbs?

(b) What is the ratio of the pressures in the bulbs?

Q.5 A sample of nitrogen gas occupies a volume of 1.0 dm³ at pressure of 0.5 atm at 40^oC .Calculate the pressure if the gas compressed to 0.225 cm³ at -6^oC.