## STATES OF MATTER QUIZ-7

IIT JEE exam which consists of JEE Main and JEE Advanced is one of the most important entrance exams for engineering aspirants. The exam is held for candidates who are aspiring to pursue a career in the field of engineering and technical studies. Chemistry is important because everything you do is chemistry! Even your body is made of chemicals. Chemical reactions occur when you breathe, eat, or just sit there reading. All matter is made of chemicals, so the importance of chemistry is that it's the study of everything.

Q1. Actual graph for the given parameters. For the non-zero volume of the molecules, real gas equation for n mol of the gas will be
•  I,III
•  I,II
•  II
•  I
Solution:
Q2. 1 of N2 and 7/8 L of O2 at the same temperature and pressure were mixed together. What is the relation between the masses of the two gases in the mixture?
•  MN2 = 3 MO2
•  MN2 = 8 MO2
•  MN2 = MO2
•  MN2 = 16 MO2
Solution:
Q3.  At 100℃ and 1 atm, if the density of the liquid water is 1.0 g cm-3 and that of water vapour is 0.0006 g cm-3, then the volume occupied by water molecules in 1 L of steam at this temperature is
•  6 cc
•  60 cc
•  0.6 cc
•  0.06 cc
Solution:
Q4.  A gas will approach ideal behaviour at
•  Low temperature and low pressure
•  Low temperature and high pressure
•  High temperature and low pressure
•  High temperature and high pressure
Solution:
Q5.At what temperature will both celsius and fahrenheit scales read the same value?
•  100°
•  180°
•  40°
•  -40°
Solution:
Q6. According to the kinetic theory of gases, for a diatomic molecule
•  The pressure exerted by the gas is proportional to the mean velocity of the molecule
•  The pressure exerted by the gas is proportional to the root mean velocity of the molecule
• The root mean square velocity of the molecule is inversely proportional to the temperature
•  The mean translational kinetic energy of the molecule is proportional to the absolute temperature
Solution:
Q7.The average velocity of an ideal gas molecule at 27℃ is 0.3 m s-1. The average velocity at 927℃ will be
•  0.6 m s-1
•  0.3 m s-1
•  0.9 m s-1
•  3.0 m s-1
Solution:
Q8.The ratio of root mean square velocity to average velocity of a gas molecule at a particular temperature is
•  1.086 : 1
•  1 : 1.086
•  2 : 1.086
•  1.086 : 2
Solution:
Q9.If a gas is expended at constant temperature
•  The pressure decreases
•  The kinetic energy of the molecules remains the same
•  The kinetic energy of the molecules decreases
•  The number of molecules of the gas increases
Solution:
Q10. The volume of helium is 44.8 L at
•  100℃ and 1 atm
•  0℃ and 1 atm
•  0℃ and 0.5 atm
•  100℃ and 0.5 atm
Solution:

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STATES OF MATTER Quiz-7