In a closed vessel of 5 litres capacity, 1 g of `O_(2)` is heated from `300` to `600 K`. Which statement is not correct ?A. Pressure of the gas increasesB. The rate of collisions increasesC. The no. of moles of the gas increasesD. The energy of the gaseous molecules increases.

In a closed vessel of 5 litres capacity, 1 g of `O_(2)` is heated from

1.	In a closed vessel of 5 litres capacity, 1 g of `O_(2)` is heated from `300` to `600 K`. Which statement is not correct ?A. Pressure of the gas increasesB. The rate of collisions increasesC. The no. of moles of the gas increasesD. The energy of the gaseous molecules increases.
Answer» Correct Answer - C Upon heating, the number of moles of a gas do not change.

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The gases obey the different gas laws only theoretically. Practically all of them show some deviation from these laws. These are called real gases. The deviation are maximum under high pressyre and at low temperature. These are comparatively small when the conditions are reversed. It has been found that the easily liquefiable gases show more deviations from the ideal gas beheviour as compared to the gases which are liqufied with diffculty. Gas deviates from ideal gas beheviour because moleculesA. are coloulessB. attract each otherC. contain covalent bondD. show Brownian Movement.
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The behaviour of ideal gas is goverened by various gas laws which are described by mathematical statements as given below: (`i`) `PV=k` (constant) at constant `n` and `T` (`ii`) `V//T=k_(2)` (constant) at constant `n` and `P` (`iii`) `V//n=k_(3)` (constant) at constant `T` and `P` (`iv`) `PV=nRT` (`v`) `P//T=k_(4) (constant) at constant `n` and `V` Answer the following The value of `k_(2)` isA. Independent of nature and amount of gasB. Depends on temperature and pressure conditionsC. Depends on pressure and amount of gasD. Depends only on nature of gas
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Oxygen is present in a `1 L` flask at a pressure of `7.6xx10^(-10)mm Hg`. Calculate the number of oxygen molecules in the flask at `0^(@)C`.A. `2.7xx10^(9) "molecules"`B. `2.7xx10^(10) "molecules"`C. `2.7xx10^(11) "molecules"`D. `2.7 xx10^(12) "molecules"`
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In a closed vessel of 5 litres capacity, 1 g of `O_(2)` is heated from `300` to `600 K`. Which statement is not correct ?A. Pressure of the gas increasesB. The rate of collisions increasesC. The no. of moles of the gas increasesD. The energy of the gaseous molecules increases.

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