If a 20 gram piece of copper at 50oC touches a 10 gram piece of copper at 90oC, in which direction will heat flow? Estimate the final temperature once both pieces of copper reach thermal equilibrium and explain your estimate. a)
the heat flows from the 10 g piece to the 20 gram piece and final temperature is about 70oC because they are both made out of copper
b)
he heat flows from the 20 g piece to the 10 gram piece and final temperature is about 50oC because the hot piece has lower mass

yessir

Explanation:

cytokinesis is the splitting of a cell membrane to form 2 identical daughter cells. it's similar to mitosis as both cells have identical copies of dna and cytokinesis is a step in the mitotic cycle.

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.