1. What is the independent variable in this experiment? How do you know? 2.What

Question

1. What is the independent variable in this experiment? How do you know? 2.What is the dependent variable? How do you know? 3.What quantities are controls, that is, what quantities are held constant (at least approximately) throughout the experiment?Question on Data1. Does the equilibrium temperature appear to depend on the mass of cold water in the mixture? If so, how? Describe the relationship. Physics Lab: Heat & Temperature Procedure 1 Answers: Initial Hot Temp. C) 89.9 Temp. of Hot Water 0:30 86.9 1:00 83.8 1:30 2:00 77.8 2:30 74.7 3:00 71.7 3:30 68.7 4:00 65.6 4:30 5:00 59.6 Final Equilibrium Temp. ("C) 53.5 Procedure 2 Answers: Initial Hot Temp. C) Amt of Coldwater (mL) Initial Hot Temp. C) Amt of Cold Water (mL) Initial Hot Temp. (C) Amt of Coldwater (mL)) Initial Hot Temp. ("C) Amt of Cold Water (mL)) Initial Hot Temp. C) Amt of ColdWater (mL)) Initial Hot Temp. C) Amt of Coldwater (mL) 86.9 Initial Temp. Cold C) 100 EquilibriumTemp. C) 89.0 Initial Temp. Cold C)) 25 EquilibriumTemp. C) 89.7 nitial Temp. Cold ("C)) 50 Equilibrium Temp. ("C 86.3 Initial Temp. Cold Cl) 150 EquilibriumTemp. (Tc) 85.8 Initial Temp. Cold C) 200 EquilibriumiTemp. 89.2 nitial Temp. Cold I'C) 2500 EquilibriumTemp. 21.3 65.0 20.7 81.4 21.6 76.1 21.2 58.4 21.9 53.9 51.7

Explanation / Answer

The exact nature of your question is confusing. Is data available in the picture an answer to questions you are asking? I will try to explain to my best capabilities from what I understand.

In procedure 1

Time is the independent variable (if it is time that is given) and temperature, the dependent variable. Mass of water is kept constant.

In procedure 2

Q1. Amount of water is the independent variable. Since the equilibrium temperature depends on the amount of water and not the other way round.

Q2. So the dependent variable is the equilibrium temperature. Same reason as above.

Q3. For each experiment, mass of the water is kept constant.

(Can't figure out what is Data 1)

Equilibrium temperature does not depend on the mass of the water. It simply depends on the initial hot and cold temperature. The amount od heat exchange depends on the mass.

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