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Two blocks of the same metal having same...

Two blocks of the same metal having same mass and at temperature `T_(1)` and `T_(2)` respectively, are brought in contact with each other and allowed to attain thermal equilibrium at constant pressure. The change in entropy, `DeltaS` for this process is

A

`C_pIn[((T_1+T_2)^2)/(4T_1T_2)]`

B

`2C_pIn[((T_1+T_2)^(1/2))/(4)]`

C

`2C_pIn((T_1+T_2)/(4T_1T_2))`

D

`2C_pIn[(T_1+T_2)/(2T_1T_2)]`

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