One litre of a gas weights 2 g at 300 K ...

One litre of a gas weights 2 g at 300 K and 1 atm pressure. If the pressure is made 0.75 atm at which of the following temperature will one litre of the same gas weight one gram ?

A

450 K

B

600 K

C

800 K

D

900 K

Verified by Experts

The correct Answer is:

A

`(P_1V_2)/(n_1T_1) = (P_2V_2)/(n_2 T_2) therefore T_2 = P_2/P_1 V_2/V_1 T_1 m_1/m_2`
` = (0.75)/(1) xx 1/1 xx 2/1 xx 300K = 450K`

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