SSC JE Mechanical Engineering 2018 Set 3 Paper

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Question : 166 of 200

Marks: +1, -0

In a polytropic process
(a)

T_1/T_2=(V_2/V_1)^{n-1/π}=(P_1/P_2)^{n-1}

(b)

T_1/T_2=(V_2/V_1)^{n-1 }=(P_1/P_2)^{n }

(c)

T_1/T_2=(V_2/V_1)^{n-1 }=(P_1/P_2)^{n -1}

(d)

T_1/T_2=(V_2/V_1)^{n-1 }=(P_1/P_2)^{n -1/π}

(a) Only
(b) Only
(c) Only
None of the above

Solution:

polytropic process

T_2/T_1=(P_1/P_2)^{{n-1}/n}=(v_1/v_2)^{n-1 }

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