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Question

The density of a gas at 27$$^{o}$$ C and 1 atm is d. At what temperature will its density become 0.75 d at constant pressure?


A
273 K
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B
350 K
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C
400 K
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D
300 K
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Solution

The correct option is C 400 K
As we know,
P = $$\displaystyle\frac{dRt}{M_w}$$ 

At constant pressure,
d$$_1$$T$$_1$$ = d$$_2$$T$$_2$$ 

d $$\times$$ 300 = 0.75 d $$\times$$ T$$_2$$
 
T$$_2$$ = 100 $$\times$$ 4 $$=$$ 400 K

Hence, option C is correct.

Chemistry

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