Figure shows a container having adiabatic walls and a freely movable separator which is highly conducting. The separator divides the cylinder in two equal parts A and B each containing 2 moles of ideal diatomic gas at temperature 300 K. Now a heater is switched on in part A, find the heat supplied (in kJ) by heater till pressure in part A is double [TakeR = 25/3 SI units]

Figure shows a container having adiabatic walls and a freely movable s

1.	Figure shows a container having adiabatic walls and a freely movable separator which is highly conducting. The separator divides the cylinder in two equal parts A and B each containing 2 moles of ideal diatomic gas at temperature 300 K. Now a heater is switched on in part A, find the heat supplied (in kJ) by heater till pressure in part A is double [TakeR = 25/3 SI units]
Answer» Solution :Since walls are adiabatic heat lost to surrounding = 0 Movable separator is highly CONDUCTING `RARR` Temperature remains same in both chambers at all TIME `rArr` separator doesn’t move or work DONE by gas ` =0 :. nC_v dt = d theta = (2 xx n) (5/2 R) ( 2 T_0 - T_0)""rArr d theta = 25 KJ`

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