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
B
350 K
C
400 K
D
300 K

Solution

## The correct option is C 400 KAs 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 KHence, option C is correct.Chemistry

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