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What is the formula to calculate the heat energy required to raise the temperature of a substance?
What is the formula to calculate the heat energy required to raise the temperature of a substance?
The specific heat capacity of a substance is the amount of heat energy required to raise the temperature of 1 kg of that substance by 1°C.
The specific heat capacity of a substance is the amount of heat energy required to raise the temperature of 1 kg of that substance by 1°C.
True
Calculate the heat required to raise the temperature of 0.20 kg of cooking oil by 50°C given the specific heat capacity is 1800 J/(kg°C).
Calculate the heat required to raise the temperature of 0.20 kg of cooking oil by 50°C given the specific heat capacity is 1800 J/(kg°C).
18000 J
The graph of Heat Energy (J) versus Temperature Increase (°C) will show a _____ relationship.
The graph of Heat Energy (J) versus Temperature Increase (°C) will show a _____ relationship.
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Match the following specific heat capacities with their respective substances:
Match the following specific heat capacities with their respective substances:
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Study Notes
Specific Heat Capacity
- Specific heat capacity (c) is the amount of heat energy needed to raise the temperature of 1 kilogram of a substance by 1°C.
- Formula: Q = mc∆T, where
- Q = heat energy (in joules, J)
- m = mass (in kilograms, kg)
- c = specific heat capacity (in joules per kilogram per degree Celsius, J/kg°C)
- ∆T = temperature change (in degrees Celsius, °C)
- Units:
- Q = Joules (J)
- m = kilograms (kg)
- c = J/(kg°C)
- ∆T = °C
Temperature vs. Heat
- Temperature is a measure of how hot or cold something is.
- Heat is the energy transferred due to a difference in temperature.
- Temperature is measured in °C, heat is measured in joules (J).
Heat Transfer
- Heat moves from areas of high temperature to areas of low temperature until thermal equilibrium is reached.
- Heat transfer occurs in three ways:
- Conduction: Heat transfer through direct contact.
- Convection: Heat transfer in fluids (liquids and gases) due to the movement of particles.
- Radiation: Heat transfer through electromagnetic waves.
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Description
Test your understanding of specific heat capacity, temperature, and heat transfer. This quiz covers key concepts, formulas, and units related to thermal energy and its transfer mechanisms. Challenge yourself with questions that reinforce these fundamental physical science principles.
