Heat transfer between two substances is affected by their specific heat $c$ and the difference in their temperatures $\Delta T$. Which of the following best describes the other main factor that influences the amount of heat transferred?

• A. The mass of the substances $m$
• B. The atmospheric pressure
• C. The color of the substances
• D. The altitude at which the substances are located

Answer: (A)

Verified step by step guidance

1. Understand that the amount of heat transferred, often denoted as \(Q\), depends on three main factors: the mass of the substance (\(m\)), its specific heat capacity (\(c\)), and the change in temperature (\(\Delta T\)).
2. Recall the formula for heat transfer: \(Q = m \times c \times \Delta T\), where \(Q\) is the heat energy transferred, \(m\) is the mass, \(c\) is the specific heat capacity, and \(\Delta T\) is the temperature difference.
3. Recognize that specific heat capacity (\(c\)) is a property that tells us how much heat energy is needed to raise the temperature of 1 kilogram of a substance by 1 degree Celsius (or Kelvin).
4. Note that the temperature difference (\(\Delta T\)) drives the direction and amount of heat flow between substances.
5. Identify that the mass (\(m\)) of the substance is the other main factor influencing heat transfer because more mass means more material to absorb or release heat.