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Heat Capacity and Specific Heat Capacity
Heat capacity is the amount of heat needed to raise a system's temperature by one degree, expressed in units of thermal energy per degree. Specific heat capacity is the amount of heat needed to increase the temperature of one kilogram of a substance by one degree, expressed in joules per kg per degree Kelvin. The document provides formulas for heat capacity and specific heat capacity, and gives an example quiz to test understanding of specific heat capacity definitions and calculations involving changes in temperature and heat energy.
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Explains heat capacity as the heat needed to raise temperature, units in J/K, and formulas.
Describes specific heat capacity as heat needed for 1 kg substance per degree, units in J/kgK.
Includes quiz questions assessing knowledge of specific heat and heat calculations.
Wraps up the presentation with acknowledgments and group names.
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Heat Capacity and Specific Heat Capacity
- 1. HEAT CAPACITY AND SPECIFICHEAT CAPACITY
- 2. Heat capacity the amountof heat needed to raise the system's temperature by one degree (usually expressed in Celsius or Kelvin). It is expressed in units of thermal energy per degree temperature.
- 3. Formula: unit of heatcapacity: J/K Where C = heat capacity (J/K) Q = Amount of heat energy (J) Δθ = change in temperature (K)
- 4. Specific Heat Capacity Theamount of heat needed to increase the temperature of one kilogram of a substance by one degree is the specific heat capacity. It is expressed in joules per kg per degree kilvin.
- 5. Formula: unit of specificheat capacity: J/kgK Where c = specific heat capacity (J/kgK) Q = Amount of heat energy (J) Δθ = change in temperature (K)
- 6. Quiz 1-What is thecorrect definition of specific heat capacity? A. The amount of water taken to heat a kettle. B. The amount of heat per unit mass to lower the temperature by three degrees Celsius. C. The amount of heat per unit mass required to raise the temperature by one degree Celsius. D. Jenny thurling. C. The amount of heat per unit mass required to raise the temperature by one degree Celsius.
- 7. 2. When 3.0kg of water is cooled from 80.0 C to 10.0 C, how much heat energy is lost? 3. How much heat is needed to raise a 0.30 kg piece of aluminum from 30. C to 150 C? 4. Calculate the temperature change when: a)10.0 kg of water loses 232 kJ of heat. b) 1.96 kJ of heat are added to 500. g of copper.
- 8. The end Group2 Ahmed Elwan Abdul Fattah Abo Hamad Abdul Rahman Gamal Suleiman David Tawfik Fahmy Tawfik 1-3