Question

which best describes the direction of hear?
from a substance with no thermal energy to a substance with high amounts of thermal energy
from a substance with less thermal energy to a substance with more thermal energy
from a cooler substance to a warmer substance
from a warmer substance to a cooler substance

Explanation:

Heat transfer occurs based on temperature difference. According to the second - law of thermodynamics, heat flows from a region of higher temperature (warmer substance) to a region of lower temperature (cooler substance). Thermal energy is related to temperature and the amount of substance. A substance with no thermal energy is an idealized concept (absolute zero, which is not achievable in practice). Also, heat does not flow from less thermal energy to more thermal energy (if we just consider the amount without temperature, for example, a large - volume cooler substance has more thermal energy than a small - volume warmer substance, but heat still flows from the warmer to the cooler).

Answer:

from a warmer substance to a cooler substance