if gamma denotes the ratio of the two specfic of a gas then the ratio of the slope of adiabetic and isothermal p v curve at their point of intersection is
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In Isothermal process,
PV = constant
Differentiating both sides,
P dv + V dP = 0
So,
dP/dV = - P/V
This will be the slope of an Isothermal process
Now,
In adiabatic process, by Poisson equation
PV^gamma = constant
So,
P*gamma*V^gamma-1 dV + V^gamma dP = 0
So,
dP/dV = -gamma*P/V
So,
ratio of the slopes of adiabatic to Isothermal process
= -gamma(P/V)/(-P/V) = gamma
Hope this helps you !
PV = constant
Differentiating both sides,
P dv + V dP = 0
So,
dP/dV = - P/V
This will be the slope of an Isothermal process
Now,
In adiabatic process, by Poisson equation
PV^gamma = constant
So,
P*gamma*V^gamma-1 dV + V^gamma dP = 0
So,
dP/dV = -gamma*P/V
So,
ratio of the slopes of adiabatic to Isothermal process
= -gamma(P/V)/(-P/V) = gamma
Hope this helps you !
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