Volume of 100 liter gas increases to 120 liter at
constant temperature and 10 bar external
pressure. Calculate the work done by the
system [1 liter bar = 24.21 calory]
Answers
Given info : Volume of 100 liter gas increases to 120 liter at constant temperature and 10 bar external pressure.
To find : The workdone by the system is ..
solution : work done at constant temperature is given by, W = P∆V
here Pressure , P = 10 bar
and change in volume , ∆V = V₂ - V₁
= 120 litres - 100 litres
= 20 litres.
now workdone by the system = 10 bar × 20 litres
= 200 litre bar
but given, I litres bar = 24.21 cal
= 200 × 24.21 cal
= 4842 cal
Therefore the workdone by the system is 4842 cal.
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Given info :
Volume of 100 liter gas increases to 120 liter at constant temperature and 10 bar external pressure.
To find :
The workdone by the system is ..
solution :
work done at constant temperature is given by, W = P∆V
here Pressure , P = 10 bar
and change in volume , ∆V = V₂ - V₁
= 120 litres - 100 litres
= 20 litres.
now workdone by the system = 10 bar × 20 litres
= 200 litre bar
but given, I litres bar = 24.21 cal
= 200 × 24.21 cal
= 4842 cal
Therefore the workdone by the system is 4842 cal.