তাপগতীয় প্রক্রিয়া

P-V diagram of an ideal gas is as shown in figure. work done by the gas the process ABCD is:

হানি নাটস

Work done for PVPV curve

is, area under the PVPV curve

Work done for ABAB= P(dV)P(dV)

(Po)Vo=(PoVo)- (P_o)* V_o= -(P_o V_o)........(i)(i)

Work done for BCBC, (dV)=o(dV)= o

So, work done for BC=0BC = 0.........(ii)(ii)

Work done for CDCD= (2Po)(2Vo)=(4PoVo)(2P_o)*(2V_o)= (4P_o V_o)......(ii)(ii)

Total Work done = adding euations (i),(ii),and(ii) (i), (ii), and (ii) we get,

Work done for ABCD=(3PoVo)ABCD = (3P_o V_o)

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