Two identical bodies are made of a material for which the heat capacity increases with temperature. One of these is at \(100~^{\circ}\mathrm{C}\), while the other one is at \(0~^{\circ}\mathrm{C}.\) If the two bodies are brought into contact, then assuming no heat loss, the final common temperature is:
1. | \(50~^{\circ}\mathrm{C}\) |
2. | \(50~^{\circ}\mathrm{C}\) | more than
3. | \(50~^{\circ}\mathrm{C}\) but greater than \(0~^{\circ}\mathrm{C}\) | less than
4. | \(0~^{\circ}\mathrm{C}\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySteam at \(100~^{\circ}\mathrm{C}\) is passed into \(20~\text{g}\) of water at \(10~^{\circ}\mathrm{C}\). When water acquires a temperature of \(80~^{\circ}\mathrm{C}\), the mass of water present will be:
[Take specific heat of water \(= 1~\text{cal g}^{-1}~^\circ\mathrm{C}^{-1}\) and latent heat of steam \(= 540~\text{cal g}^{-1}\)]
1. \(24~\text{g}\)
2. \(31.5~\text{g}\)
3. \(42.5~\text{g}\)
4. \(22.5~\text{g}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyLiquid oxygen at \(50\) K is heated up to \(300\) K at a constant pressure of \(1\) atm. The rate of heating is constant. Which one of the following graphs represents the variation of temperature with time?
1. | 2. | ||
3. | 4. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology