Q 48 A certain mass of an ideal gas at 9 atm and 30 C is first heated to - Chemistry -

Question

Q 48 A certain mass of an ideal gas at 9 atm and 30 ° C is
first heated to 131 ° C at constant volume and then the amount
of the gas is increased by 50 % at constant volume and temperature
The final pressure of the gas becomes
(a) 9 atm
(b) 4 5 atm
(c) 18 atm
(d) 13 5 atm

Yasodharan · Accepted Answer

Dear Student,

The computation are as expressed below,
Pi=9 atm, Ti=30oC, Tf=131oC,  V=50%⇒Vf=1
5ViTfTi=PfVfPiVi⇒(131+273)(30+273)=Pf× Vi9×ViPf=12 atmit is given amount of gas is increased by 50% const V and T so we get,P=12×1
5=18 atmAnswer is Option (C) 18 atm

Regards

Q.48. A certain mass of an ideal gas at 9 atm and 30 ° C is first heated to 131 ° C at constant volume and then the amount of the gas is increased by 50 % at constant volume and temperature. The final pressure of the gas becomes (a) 9 atm (b) 4.5 atm (c) 18 atm (d) 13.5 atm

Q.48. A certain mass of an ideal gas at 9 atm and 30 $°$ C is first heated to 131 $°$ C at constant volume and then the amount of the gas is increased by 50 % at constant volume and temperature. The final pressure of the gas becomes
(a) 9 atm
(b) 4.5 atm
(c) 18 atm
(d) 13.5 atm