Question

two objects at different temperatures are arranged as shown below. if the objects are touching each other, which of the following describes what will occur?
object x 55°c
object y 25°c
heat will flow from object x to object y until y is warmer than x.
heat will flow from object y to object x until x is cooler than y.
heat will flow from object y to object x until both are the same temperature.
heat will flow from object x to object y until both are the same temperature

Explanation:

Heat flows spontaneously from a warmer object to a cooler object until thermal equilibrium (same temperature) is reached. Object X (55°C) is warmer than Object Y (25°C), so heat will flow from X to Y until both have the same temperature.

Answer:

Heat will flow from object X to object Y until both are the same temperature.