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Consider a gas at temperature T occupying a volume V consisting of a mixture of two gases having `N_(a) & N_(b)` atoms of masses `m_(a) & m_(b)` respectively. Suppose that `N_(a)=N_(b)` the different atoms combine at constant volume to form molecules of mass `m_(a)+m_(b)`. Once the temperature returns to its original value, what would be the ratio of the pressure after combination to the pressure before?A. 1B. `1//3`C. `1//2`D. none |
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Answer» Correct Answer - C After getting combined the no. of moles becomes half in this case :. At const. V and T `P propto n` :. P becomes half |
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