WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL

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TABLE DR1 SUMMARY OF ~19001450 MA HEATINGCOOLING EVENTS BLACK
WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL



Heating and Cooling Curves

WS Heating/Cooling Curves


Heating and Cooling Curves


  1. LABEL each of the following of the heating curve of water below:

    1. boiling point (bp) and melting/freezing point (mp)

    2. phase changes (melting/freezing , vaporizing/condensing)

F



WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL

A

B

C

D

E

Heat added

 WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL

WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL


2. Circle which phase(s) of water exist(s) in each section of the heating curve.

section AB. solid liquid gas

section BC. solid liquid gas

section C.D solid liquid gas

section DE. solid liquid gas

section EF. solid liquid gas



3. Circle which type of energy is increasing in the sample during each section as heat is being added.

section AB. kinetic potential

section BC. kinetic potential

section CD. kinetic potential

section DE. kinetic potential

section EF. kinetic potential



4. Section DE is longer than section BC because water has a higher heat of __________________

than heat of _____________________ because it takes more energy to ____________________

_____________________________________________________________________________.


5. What is the highest temperature that liquid water can reach at normal atmospheric pressure?

    1. 0 K B. 273 K C. 0oC D. 100oC



WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL























6. Liquid naphthalene at 95°C was cooled to 30°C, as represented in the cooling curve shown above.

From which section of the curve can the melting point of naphthalene be determined?

(A) A

(B) B

(C) C

(D) D

(E) E







WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL

WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL



WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL





WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL


WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL



WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL WS HEATINGCOOLING CURVES HEATING AND COOLING CURVES 1 LABEL




7. The graph above shows the temperature of a pure substance as it is cooled at a constant rate in an open vessel at 1.0 atm pressure. The substance changes from the vapor to the liquid to the solid phase.

Which of the following best describes what hap­pens to the substance between t4 and t5?

(A) The molecules are leaving the solid phase.

(B) The vapor and liquid phases coexist in equi­librium.

(C) The vapor pressure of the substance is de­creasing.

(D) The average intermolecular distance is de­creasing.

(E) The temperature of the substance is decreas­ing.



2





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