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Caculate the number of atoms in 39.4 g g...

Caculate the number of atoms in 39.4 g gold. Molar mass of gold is 197g`mole^(-1).`

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To calculate the number of atoms in 39.4 g of gold, we can follow these steps: ### Step 1: Identify the given data - Mass of gold (m) = 39.4 g - Molar mass of gold (M) = 197 g/mol ### Step 2: Calculate the number of moles of gold To find the number of moles (n) of gold, we use the formula: ...
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NCERT EXEMPLAR ENGLISH-KINETIC THEORY-Multiple Choice Questions (MCQs)
  1. Which of the following diagrams (figure) depicts ideal gas behaviour?

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  2. When an ideal gas is compressed adiabatically , its temperature rises ...

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  3. Caculate the number of atoms in 39.4 g gold. Molar mass of gold is 197...

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  4. The volume of a given mass of a gas at 27^(@)C, 1 atm is 100cc. What w...

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  5. The molecules of a given mass of a gas have root mean square speeds of...

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  6. Two molecules of a gas have speeds of 9xx10^(6) ms^(-1) and 1xx10^(6) ...

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  7. A gas mixture consists of 2.0 moles of oxygen and 4.0 moles of neon a...

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  8. Calculate the ratio of the mean free paths of the molecules of two gas...

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  9. The container shown in figure has two chambers separated by a partitio...

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  10. A gas mixture consists of molecules of A,B and C with masses m(A) g...

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  11. We have 0.5 g of hydrogen gas in a cubic chamber of size 3 cm kept at ...

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  12. When air is pumped into a cycle tyre the volume and pressure of the a...

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  13. A balloon has 5.0 mole of helium at 7^(@)C. Calculate (a) the numbe...

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  14. Calculate the number of degrees of freedom of molecules of hydrogen in...

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  15. An insulated container containing monoatomic gas of molar mass m is m...

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  16. Explain why (a) there is no atmosphere on moon (b) there is fall i...

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  17. Consider an ideal gas with following distribution of spedds. (a) C...

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  18. Ten small planes are flying at a speed of 150 km//h in total darkness ...

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  19. A box of 1.00 m^(3) is filled with nitrogen at 1.50 atm at 300 k. The ...

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  20. Consider a rectangular block of wood moving with a velocity v(0) in a ...

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