One mole of an ideal monoatomic gas is subjected to change as shown in the graph. The magnitude of the work done (by the system or on the system) is __________ J(nearest integer) 1.0 Volume (L) 0.5 20

Question

One mole of an ideal monoatomic gas is subjected to change as shown in the graph. The magnitude of the work done (by the system or on the system) is __________ J(nearest integer) 1.0 Volume (L) 0.5 20 2 Pressure(bar) Given log2 = 0.3 ln10 = 2.3

Prashant Kotian · Accepted Answer

Correct answer: .. 1 W = –1 (40 - 20) = –20 bar lit. 2 W = 0 3 W = –nRT ln       2 V V = –P1V1ln       2 V V = –1  20 ln 40 = 20ln 2 = 20  2.3  0.3 = 13.8 bar lit. Wtotal = –20 + 13.8 = –6.2 bar lit. (1 bar lit. = 100 J) Wtotal = – 6.2  100 = – 620 J | JEE(Main) 2023 | DATE : 24-01-2023 (SHIFT-2) | PAPER-1 | CHEMISTRY PAGE # 10

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