two pots with different amounts of water are heated by identical flames for several minutes. which one…

two pots with different amounts of water are heated by identical flames for several minutes. which one absorbs the most thermal energy? pot a they absorb the same amount of energy. pot b

two pots with different amounts of water are heated by identical flames for several minutes. which one absorbs the most thermal energy? pot a they absorb the same amount of energy. pot b

Answer

Explanation:

Step1: Recall heat - absorption principle

The amount of heat energy $Q$ absorbed by a substance is given by $Q = mc\Delta T$, where $m$ is the mass, $c$ is the specific - heat capacity, and $\Delta T$ is the change in temperature. Here, the specific - heat capacity of water $c$ is the same for both pots, and assume the initial and final temperatures are the same (since they are heated for the same time by identical flames), so $\Delta T$ is the same. The pot with more water has a greater mass $m$.

Step2: Compare the masses of water in pots

From the picture, pot B has more water than pot A, so the mass of water in pot B ($m_B$) is greater than the mass of water in pot A ($m_A$), i.e., $m_B>m_A$.

Step3: Determine the absorbed heat

Since $Q = mc\Delta T$, with $c$ and $\Delta T$ constant, and $m_B>m_A$, then $Q_B>Q_A$. So pot B absorbs more thermal energy.

Answer:

Pot B