1.

4.0 g of argon (at mass = 40) in a bulb at a temperature of TK had a pressure P atm. When the bulb was placed in hotter bath at a temperature 50^(@) more than the first one, 0.8 g of gas had to be removed to get the original pressure. T is equal is

Answer»

510 K
200 K
100 K
73 K

Solution :According to ideal gas eqatio
`PV = w (RT)/(M) " or " WT = (PV)/(R) .M`
or `w_(1)T_(1) = w_(2) T_(2)` when P and V are constant
Hence `4 xx T = 3.2 (T + 50)`
or `T = 200 K`


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