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Calorimetry & Specific Heat Capacity Video Lecture | Physics Class 11 - NEET

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FAQs on Calorimetry & Specific Heat Capacity Video Lecture - Physics Class 11 - NEET

1. What is calorimetry?
Ans. Calorimetry is the scientific measurement of heat transfer in a chemical reaction or physical process. It involves using a calorimeter, an instrument that measures the heat released or absorbed during a reaction or process, to determine the amount of heat energy involved.
2. What is specific heat capacity?
Ans. Specific heat capacity is the amount of heat energy required to raise the temperature of a unit mass of a substance by one degree Celsius (or one Kelvin). It is a characteristic property of a substance that determines how much heat energy it can absorb or release without a significant change in temperature.
3. How is calorimetry used to determine specific heat capacity?
Ans. Calorimetry can be used to determine the specific heat capacity of a substance by measuring the heat energy transferred during a known temperature change. By knowing the mass of the substance and the temperature change, the specific heat capacity can be calculated using the formula Q = mcΔT, where Q is the heat energy transferred, m is the mass of the substance, c is the specific heat capacity, and ΔT is the temperature change.
4. Why is specific heat capacity important in everyday life?
Ans. Specific heat capacity is important in everyday life as it helps us understand how different substances respond to changes in temperature. For example, substances with high specific heat capacities, such as water, can absorb or release a large amount of heat energy without a significant change in temperature. This property makes water an effective coolant and helps regulate the temperature of our bodies. Understanding specific heat capacity also allows us to determine the amount of energy required to heat or cool substances, which is important in various applications, including cooking, heating systems, and air conditioning.
5. How does specific heat capacity affect the efficiency of heating and cooling systems?
Ans. The specific heat capacity of a substance affects the efficiency of heating and cooling systems. Substances with low specific heat capacities, such as metals, require less energy to heat or cool compared to substances with high specific heat capacities, such as water. Therefore, heating or cooling systems that use substances with low specific heat capacities can achieve desired temperature changes more quickly and efficiently. Additionally, understanding the specific heat capacities of different materials allows engineers and designers to optimize the selection of materials in heating and cooling systems to maximize energy efficiency.
118 videos|470 docs|189 tests
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