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Q.

At a temperature T K, the pressure of 4.0 gm argon in a bulb is P. The bulb is put in a bath having temperature higher by 50 K then the first one. 0.8 gm of argon gas had to be removed to maintain original pressure. The temperature T is __

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a

510 K

b

200 K

c

100 K

d

73 K

answer is B.

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Detailed Solution

T1=TK T2=50+T w1=4g w2=4-0.8=3.2g PV=constant   from PV=wMRT w1T1=w2T24×T=3.2×50+T T=200 K

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