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Introduction to States of Matter
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Introduction to States of Matter
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20 Questions

1. An fcc crystal contains how many atoms in each unit cell
2. In crystals, which one of the ionic compounds would your expect maximum distance between centres of cations and anions?
3. Edge length of a cube is 400 pm. Its body diagonal would be
4. Crystalline solid is
5. If 10g of a gas at 1 atmospheric pressure is cooled from 273°C to 0°C, keeping the volume constant, its pressure would become
6. The coordination number of a cation occupying a tetrahedral hole is
7. If we mix a pentavalent impurity in a crystal lattice of germanium, what type of semi-conductor formation will occur?
8. Select the covalent solids
9. Edge length of a cube is 400 pm. Its body diagonal would be
10. At the top of a mountain, the thermometer reads 0oC and barometer reads 710 mm of Hg. At the bottom of the mountain, the temperature is 30°C and pressure is 760 mm of Hg. The ratio of density of air at the top with that at the bottom is
11. When molten zinc is cooled to solid state, it assumes HCP structure. Then, the number of nearest neighbours of zinc atom will be
12. X ml of H2 gas effuse through a hole in a container in 5 seconds. The time taken for the effusion of the same volume of the gas specified below under ideal condition is
13. In an auto engine with no pollution controls, about 5% of the fuel (C8H18) is unburned. Molar ratio of CO and C8H18 emitted in the exhaust gas is
14. An fcc crystal contains how many atoms in each unit cell
15. A certain quantity of hydrogen gas occupies a volume of 30.0 ml at a certain temperature and pressure. What volume would half this mass of hydrogen occupy at triple the absolute temperature if the pressure were one ninth that of the original gas?
16. The value of the universal gas constant R depends on
17. Average velocity of an ideal gas molecule at 27°C is 3m/s. The average velocity at 927°C will be
18. How many space lattices are possible in a crystal?
19. In crystals, which one of the ionic compounds would your expect maximum distance between centres of cations and anions?
20. When molten zinc is cooled to solid state, it assumes HCP structure. Then, the number of nearest neighbours of zinc atom will be