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Physics Thermodynamics Mix MCQ (Single Correct)

Three liquids A, B and C are in three separate containers. Temperature at A, B and C are 10ºC, 15ºC and 20ºC. Mass of each liquid is same. Relation among specific heat capacity of A, B and C are S A = 2S B = 4S C

Column-I

Column-I

(i) Thermal energy of A changes

[A] When liquid A and

B are mixed

(ii) Thermal energy

of B changes

[B] When liquid A and

C are mixed

(iii) Final

temperature is

[C] When liquid B and

C are mixed

(iv) Final

temperature is

[D]When all three

liquids remixed

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Ans.

(i) [A], [B], [D]

(ii) [A], [C], [D]

(iii) [A]

(iv) [D]

Sol.

(i) When liquid A and B are mixed, When liquid A and C are mixed, When all three liquids remixed

(ii) When liquid A and B are mixed,When liquid B and C are mixed, When all three liquids remixed

(iii) When liquid A and B are mixed

(iv) When all three liquids remixed

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