Podcast
Questions and Answers
What is the definition of specific heat capacity (𝐶𝑃) of a substance?
What is the definition of specific heat capacity (𝐶𝑃) of a substance?
- The amount of energy required to cause a unit increase in temperature for one unit mass of the substance (correct)
- The energy transferred through a material with unit area and thickness in a unit time
- The amount of energy required to cause a unit decrease in temperature for one unit mass of the substance
- The heat quantity transferred through a homogeneous layer of the material with unit area and thickness in a unit time
What does the coefficient of thermal conductivity (λ) measure?
What does the coefficient of thermal conductivity (λ) measure?
- The amount of heat required to change the temperature of a substance
- The energy required to raise the temperature of a substance by one unit
- The rate of heat transfer through a material with a temperature difference of 1°C
- The amount of heat transferred through a material with unit area and thickness in a unit time (correct)
Which unit is used to measure specific heat capacity (𝐶𝑃)?
Which unit is used to measure specific heat capacity (𝐶𝑃)?
- J
- W/m
- J/kg. oC (correct)
- kg
For which type of material is the coefficient of thermal conductivity most relevant?
For which type of material is the coefficient of thermal conductivity most relevant?
How is specific heat capacity (𝐶𝑃) related to the temperature change and mass of a substance?
How is specific heat capacity (𝐶𝑃) related to the temperature change and mass of a substance?
What does the symbol ∆𝑄 represent in the equation ∆𝑄 = 𝐶𝑃 ∙ 𝑚 ∙ ∆𝜃?
What does the symbol ∆𝑄 represent in the equation ∆𝑄 = 𝐶𝑃 ∙ 𝑚 ∙ ∆𝜃?
What property of a material refers to its response to exposure to electromagnetic radiation, particularly visible light?
What property of a material refers to its response to exposure to electromagnetic radiation, particularly visible light?
What is the reciprocal of conductivity?
What is the reciprocal of conductivity?
What is the unit of dielectric strength?
What is the unit of dielectric strength?
What type of material allows relatively little absorption and reflection of light?
What type of material allows relatively little absorption and reflection of light?
What is the property of a material which resists the flow of electric current through it?
What is the property of a material which resists the flow of electric current through it?
What is the effect of voids on the coefficient of thermal conductivity?
What is the effect of voids on the coefficient of thermal conductivity?
What does the specific heat capacity (𝐶𝑃) of a substance measure?
What does the specific heat capacity (𝐶𝑃) of a substance measure?
What is the coefficient of thermal conductivity (λ) a measure of?
What is the coefficient of thermal conductivity (λ) a measure of?
In the equation ∆𝑄 = 𝐶𝑃 ∙ 𝑚 ∙ ∆𝜃, what does ∆𝑄 represent?
In the equation ∆𝑄 = 𝐶𝑃 ∙ 𝑚 ∙ ∆𝜃, what does ∆𝑄 represent?
What unit is used to measure the specific heat capacity (𝐶𝑃) of a substance?
What unit is used to measure the specific heat capacity (𝐶𝑃) of a substance?
What is the thermal conductivity of a material with a unit area (1 m2) and a unit thickness (1 m) in a unit time (sec.) when the difference in temperature between the two sides equals 1 °C in the steady state?
What is the thermal conductivity of a material with a unit area (1 m2) and a unit thickness (1 m) in a unit time (sec.) when the difference in temperature between the two sides equals 1 °C in the steady state?
What does the symbol λ represent in the context of thermal properties of materials?
What does the symbol λ represent in the context of thermal properties of materials?
What does the coefficient of thermal resistance (R) measure?
What does the coefficient of thermal resistance (R) measure?
What is the property of material which allows the flow of electric current through it?
What is the property of material which allows the flow of electric current through it?
Which type of material is relatively little or no transmission of light?
Which type of material is relatively little or no transmission of light?
What does the dielectric strength indicate?
What does the dielectric strength indicate?
What is the effect of voids on the coefficient of thermal conductivity?
What is the effect of voids on the coefficient of thermal conductivity?
What is the reciprocal of conductivity?
What is the reciprocal of conductivity?
What does the temperature coefficient of resistance indicate?
What does the temperature coefficient of resistance indicate?
What does Dielectric Strength measure?
What does Dielectric Strength measure?
What does Optical property refers to?
What does Optical property refers to?
What are Transparent materials known for?
What are Transparent materials known for?
