61. What is the physical state of water at 12° Celsius?
62. Which one of the following statement with regarding to expansion of materials due to heating is not correct?
63. Which of the following devices can be used to detect radiant heat?
64. Lakes freeze in cold countries in winter, leaving the water underneath at
65. How much mechanical work must be done to completely melt 1g of ice at 0°C?
66. Which of the following thermodynamic process of constant volume is called?
67. Thermostat is related to
68. What is the freezing point of water on Kelvin scale?
69. Which electric device is not based on Joule's law of heating?
70. Match the following.
List-I
List-II
a. Zeroth Law of Thermodynamics
1. Give us the concept of temperature
b. First Law of Thermodynamics
2. Defines internal energy
c. Second Law of Thermodynamics
3. Change in internal energy is zero
d. In a complete cycle of changes
4. The efficiency of on engine is always less than unity
| List-I | List-II |
| a. Zeroth Law of Thermodynamics | 1. Give us the concept of temperature |
| b. First Law of Thermodynamics | 2. Defines internal energy |
| c. Second Law of Thermodynamics | 3. Change in internal energy is zero |
| d. In a complete cycle of changes | 4. The efficiency of on engine is always less than unity |
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