JEE Main 11 Jan 2019 Shift 1 Solved Paper

Section: Chemistry

Question : 81 of 90

Marks: +1, -0

Two blocks of the same metal having same mass and at temperature T1 and T2, respectively. are brought in contact with each other and allowed to attain thermal equilibrium at constant pressure. The change in entropy, ΔS, for this process is :

[11 Jan 2019 Shift 1]

2Cpln(
T1+T2
4T1T2
)
2Cpln[
(T1+T2)
1
2
T1T2
]
Cpln[
(T1+T2)2
4T1T2
]
2Cpln[
(T1+T2)
2T1T2
]

Validate

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