An object was placed into a container of water. The arrow shows that thermal energy is flowing from the water to the object. What is a valid conclusion?
The temperature of the object is decreasing, while the temperature of the water is increasing.
The temperature of the object is decreasing, while the temperature of the water is decreasing.
The temperature of the object is increasing, while the temperature of the water is increasing.
The temperature of the object is increasing, while the temperature of the water is decreasing.

Suppose a pair of chemical compounds a and b can react in two different ways: a + b -> c reaction 1 gives product c. a + b -> d reaction 2 gives product d. the following facts are known about the two reactions: . reaction 1 is endothermic and reaction 2 is exothermic. if a reaction vessel is charged (filled) with a and b , then at first d is produced faster than c. use these facts to sketch a qualitative reaction energy diagram for both reactions. note: because these sketches are only qualitative, the energies don? t have to be exact. they only have to have the right relationship to each other. for example, if one energy is less than another, that fact should be clear in your sketch.