Question
Which procedure can be used to determine the melting point of ice?
A. Mix ice with water and immediately measure the temperature
B. Place a beaker of liquid water in the freezer and measure the temperature after the water has become solid
C. Warm a beaker of ice on a hot plate until on the liquid remains and measure the temperature of the liquid
D. Add ice to liquid water one at a time and measure the temperature of the water once added ice cubes no longer melt
A. Mix ice with water and immediately measure the temperature
B. Place a beaker of liquid water in the freezer and measure the temperature after the water has become solid
C. Warm a beaker of ice on a hot plate until on the liquid remains and measure the temperature of the liquid
D. Add ice to liquid water one at a time and measure the temperature of the water once added ice cubes no longer melt
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GPT-4o mini
To accurately determine the melting point of ice, the correct procedure is:
**A. Mix ice with water and immediately measure the temperature.**
This method allows you to create an equilibrium between ice and liquid water. When ice is mixed with water, the temperature will stabilize at the melting point of ice (0°C at standard atmospheric pressure) as long as ice is present. Option B would not reliably indicate the melting point because it involves changing the state of water into ice; option C is incorrect because it suggests raising the temperature beyond the melting point; and option D involves measuring the temperature at the point of ice addition, which may not reflect the melting point accurately.
**A. Mix ice with water and immediately measure the temperature.**
This method allows you to create an equilibrium between ice and liquid water. When ice is mixed with water, the temperature will stabilize at the melting point of ice (0°C at standard atmospheric pressure) as long as ice is present. Option B would not reliably indicate the melting point because it involves changing the state of water into ice; option C is incorrect because it suggests raising the temperature beyond the melting point; and option D involves measuring the temperature at the point of ice addition, which may not reflect the melting point accurately.
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