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Thermodynamics question

2019 · 11 Jan · Shift 1 · Q16

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JEE Main
Chemistry
Thermodynamics
2019 · 11 Jan · Shift 1 · Q16

Thermodynamics question

2019 · 11 Jan · Shift 1 · Q16

JEE MainChemistryThermodynamicsMCQ+4 / −1

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,

\Delta

S, for this process is :

A
2Cp In $\left[ {{{{{\left( {{T_1} + {T_2}} \right)}^{{1 \over 2}}}} \over {{T_1}{T_2}}}} \right]$
B
2Cp In $\left[ {{{\left( {{T_1} + {T_2}} \right)} \over {2{T_1}{T_2}}}} \right]$
C
Cp In $\left[ {{{{{\left( {{T_1} + {T_2}} \right)}^2}} \over {4{T_1}{T_2}}}} \right]$
D
2Cp In $\left[ {{{\left( {{T_1} + {T_2}} \right)} \over {4{T_1}{T_2}}}} \right]$

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