Understanding Ciepło Właściwe (Specific Heat)
This page introduces the concept of ciepło właściwe specificheat and provides a practical example of its application in thermodynamics.
The page begins with a clear definition of ciepło właściwe. It is described as the amount of heat energy required to raise the temperature of 1 kg of a substance by 1°C. This fundamental concept is crucial for understanding heat transfer and energy calculations in physics and engineering.
Definition: Ciepło właściwe is the amount of heat energy needed to increase the temperature of 1 kg of a substance by 1°C.
The page then presents the general formula for calculating heat energy:
Q = m · c · ΔT
Where:
- Q represents heat energy
- m is the mass of the substance
- c is the ciepło właściwe specificheat of the substance
- ΔT is the change in temperature
Highlight: The formula Q = m · c · ΔT is essential for solving problems related to heat transfer and temperature changes.
An example problem is provided to illustrate the practical application of this concept:
Example: Calculate the energy needed to heat 2 kg of water from 20°C to 30°C.
The problem is solved step by step:
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Given information:
c specificheatofwater = 4100 J/kg⋅K
m massofwater = 2 kg
ΔT temperaturechange = 10°C
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Solution:
Q = 2 kg × 4100 J/kg⋅K × 10°C = 84,000 J
This example demonstrates how to use the formula to calculate the heat energy required for a specific temperature change in a given mass of water.
Vocabulary: J Joule is the unit of energy used in these calculations.
The page effectively combines theoretical knowledge with practical application, helping students understand how to apply the concept of ciepło właściwe in real-world scenarios. This approach is particularly useful for students preparing for exams or solving ciepło właściwe zadania specificheatproblems in physics classes.
