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11.2 TEMPERATURE AND HEAT. We can begin studying thermal properties of matter with definitions of temperature and heat. Temperature is a relative measure, or indication of hotness or coldness. A hot utensil is said to have a high temperature, and ice cube to have a low temperature.
The symbol c stands for specific heat, and depends on the material and phase. The specific heat is the amount of heat necessary to change the temperature of 1.00 kg of mass by 1.00 ºC. The specific heat c is a property of the substance; its SI unit is J/ (kg ⋅ K) or J/ (kg ⋅ °C ).
Thermodynamics is the study of how heat moves around in ‘macroscopic’ objects.
Physics Formulas for Class 11 and Class 12. Heat and Thermodynamics. www.concepts-of-physics.com. 1 Heat and Temperature. Temp. scales: F = 32 + 9 5C; K = C + 273:16. 4 Theromodynamic Processes. j pg. 1. First law of thermodynamics: Q = U + W. Ideal gas equation: pV = nRT, n : number of moles. van der Waals equation: p + a. 2 (V b) V = nRT.
18 Σεπ 2022 · Heat transfer is the movement of heat due to a temperature difference between a system and its surroundings. The energy transfer is always from higher temperature to lower temperature, due to the second law of thermodynamics. The units of heat transfer are the joule (J), calorie (cal), and kilocalorie (kcal).
Class – 11 Physics Chapter 11 - Thermal properties of matter 1. THERMAL PROPERTIES OF MATTER This topic discusses various thermal phenomena and how a matter behaves when subjected to the flow of thermal energy. We are specifically concerned in • Thermal Expansion. • Heat and Calorimetry • Transfer of Heat 1.1 Temperature and Heat
Heat is a type of energy transfer that is caused by a temperature difference, and it can change the temperature of an object. As we learned earlier in this chapter, heat transfer is the movement of energy from one place or material to another as a result of a difference in temperature.
