Question

describing properties of thermal energy transfer
based on what you have learned about the units for measuring thermal energy, complete the following passage.
the unit often used in chemistry and physics to measure energy, such as for work or electrical current, is the
we can also use this unit, as we did in this lab, for measuring
this is a property that is
quantified by the energy needed per
of material to raise the temperature by one
the unit for this measure is therefore

Explanation:

1. The unit for energy in chemistry and physics (work, electrical current, thermal energy) is the joule (J).
2. When measuring thermal energy transfer related to temperature change, we measure specific heat capacity (the property of a material's energy needed to raise temperature).
3. Specific heat capacity is energy per unit mass (gram or kilogram) of material.
4. Temperature is raised by one degree (Celsius or Kelvin, often °C in labs).
5. The unit for specific heat capacity combines these: joules per gram per degree Celsius ($\frac{\text{J}}{\text{g} \cdot ^\circ\text{C}}$) or joules per kilogram per Kelvin, but in lab contexts with grams and °C, it's $\frac{\text{J}}{\text{g} \cdot ^\circ\text{C}}$.

Filling the blanks:

• First blank: joule (unit of energy).
• Second blank: specific heat capacity (property measured with joules in thermal contexts).
• Third blank: gram (or “kilogram,” but “gram” is common in lab settings for mass).
• Fourth blank: degree Celsius (or “Kelvin,” but °C is typical for lab temperature changes).
• Fifth blank: $\boldsymbol{\frac{\text{J}}{\text{g} \cdot ^\circ\text{C}}}$ (or $\frac{\text{J}}{\text{kg} \cdot \text{K}}$; the lab context likely uses grams and °C).

Answer:

1. First blank: joule
2. Second blank: specific heat capacity
3. Third blank: gram (or kilogram)
4. Fourth blank: degree Celsius (or Kelvin)
5. Fifth blank: $\frac{\text{J}}{\text{g} \cdot ^\circ\text{C}}$ (or $\frac{\text{J}}{\text{kg} \cdot \text{K}}$)

(Note: The exact options in dropdowns may vary, but the scientific principles define these terms/units.)