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Chapter-4 - 11th - Liquids and Solids Preparation Multiple Questions and Answers.
| 57. | If a physical and chemical change takes place at a constant pressure then the heat change during the process is called | ||
| A. | Heat of transition | ||
| B. | Heat of fusion | ||
| C. | Enthalpy change | ||
| D. | All of above | ||
| 58. | The pressure during the molar heat of fusion is kept | ||
| A. | 0 atmosphere | ||
| B. | one atmosphere | ||
| C. | 2 atmosphere | ||
| D. | 10 atmosphere | ||
| 60. | All the enthalpy changes are | ||
| A. | Negative | ||
| B. | Positive | ||
| C. | May or may not be a or b | ||
| D. | None of above | ||
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