A student arranges two blocks of copper next to each other so that they are touching. At the start of the experiment, Block 1’s temperature is 40°C, and Block 2’s temperature is 20°C. The two blocks remain in an isolated system until all heat energy is transferred. Which picture correctly shows the blocks’ ending temperatures?(1 point)

Question

A. 50°c 50°c
B. 20°c 50°c
C. 30°c 30°c
D. 70°c 70°c

Answer 1

C. 30°c 30°c

Answer 2

are you sure

Answer 3

I apologize for the confusion. Since heat energy is transferred from Block 1 to Block 2 until both blocks reach thermal equilibrium, which is when their temperatures are equal, the correct answer should be:

C. 30°C 30°C

Answer 4

Question When you add cold milk and hot chocolate, they will slowly blend as the cooler liquid mixes with the warmer liquid. Eventually, the heat will be spread out evenly through the entire liquid. Which statement best explains why this happens?(1 point) Responses The liquids attract each other because the densities of the liquids are the same. The liquids attract each other because the densities of the liquids are the same. The molecules of the two liquids form chemical bonds to spread energy. The molecules of the two liquids form chemical bonds to spread energy. Cold liquids rise and hot liquids sink making the liquids mix. Cold liquids rise and hot liquids sink making the liquids mix. Heat always moves from areas of higher temperature to areas of lower temperature. Heat always moves from areas of higher temperature to areas of lower temperature. Skip to navigation