Which of the following statement is correct regarding p-V graph?
1 slop of p-V graph in an isothermal process is `(p)/(v)`
2 slope of p-V graph in an adiabatic process is `-(p)/(v)`
3 slope of p-V graph in an isochoric process is `(gammap)/(v)`
4 slope of p-V graph in an isobaric porcess is zero

Options

A. 1,3,4 are correct
B. 2,3 are correct
C. 1,4 are correct
D. 2,3,4 are correct

Answer

C

Explanation

(i) and (IV) options are correct
(i) Slope of p-v graph in an siothermal process is `- (p) /(V )` this is correct.

for isothemal process
slope of p-v curve `(dp)/( dv) - (p )/(v )`
(ii) Slope of p-v group in an adiabatic process is ` -(p)/(v )` which is wrong

(iii) Slope of p-v graph in an isochoric process is `- ( gamma p )/( v )` this option is wrong

( d ) Slope of p-v graph in an isobaric process is zero .this option is correct

p-v curve is a striaght line parallel to volume axis slope of p-v curve for an isobaric process `(dp )/( dv) = 0`