Calorimetry NEET 2025 Level Thermal Properties of Matter Physics NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

Two different liquids of the same mass are kept in two identical vessels which are placed in a freezer that extracts heat from them at the same rate causing each liquid to transform into a solid. The schematic ﬁgure below shows the temperature \(T\) versus time \(t\) plot for the two materials. We denote the speciﬁc heat in the liquid states to be \(C_{L_1}\) and \(C_{L_2}\) for materials \(1\) and \(2\) respectively and latent heats of fusion \(U_1\) and \(U_2\) respectively.

Choose the correct option:

1.	\(C_{L_1}>C_{L_2}~\text{and }U_1<U_2\)
2.	\(C_{L_2}>C_{L_1}~\text{and }U_1<U_2\)
3.	\(C_{L_1}<C_{L_2}~\text{and }U_1>U_2\)
4.	\(C_{L_1}<C_{L_2}~\text{and }U_1<U_2\)

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1.	In the case of liquids, the boiling point increases with pressure for all liquids.
2.	In the case of solids, the melting point decreases with pressure for all solids.
3.	In the case of ice, the melting point decreases with pressure.
4.	In the case of ice, the melting point increases with the pressure.

1.	the copper loses some entropy and the pond stays at the same entropy.
2.	the copper loses some entropy and the pond gains exactly the same amount of entropy.
3.	the copper loses entropy and the pond gains more than this amount of entropy.
4.	both copper and the pond gain in entropy.

1.	the water cuts off the oxygen supply to the paper cup
2.	water is an excellent conductor of heat
3.	the paper cup does not become appreciably hotter than the water it contains
4.	the paper is a poor conductor of heat

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