You are given the melting point and boiling point of an unknown substance. You are to create a heating curve from the data provided below. You may describe how to graph it if you can't graph it.
Here is the data for you to use to create your heating curve:
Melting point = 45°C
Boiling point = 85°C
Minimum temperature = 0°C
Maximum temperature = 110°C
Energy is absorbed but there is no numeric data to add, just include the unit for energy in your axis label
Using your heating curve, make a one sentence claim about the relationship between kinetic/potential energy and thermal energy. Make sure to include specific descriptive words such as increasing or decreasing and inverse or direct in your claim.
To create the heating curve, you would begin at the minimum temperature of 0°C and draw a horizontal line to the melting point of 45°C, representing the solid to liquid phase change. Then, draw a diagonal line to the boiling point of 85°C, showing the increase in temperature as the substance changes from liquid to gas. Finally, draw another horizontal line to the maximum temperature of 110°C, indicating the ongoing energy absorption before reaching a gas state.
Based on the heating curve, as the substance transitions from solid to liquid and then to gas, the kinetic energy increases while potential energy decreases, resulting in an overall increase in thermal energy.
You will provide 3 unique pieces of evidence from your heating curve that support your claim. In other words, do not use the same evidence for each but wording it differently - each piece of evidence should be distinguished from the others you have selected. Identify your evidence being as specific as possible yet thorough enough to make your point without explaining why it supports the claim. You will do this later in the assignment. You may want to refer back to your claim periodically to ensure that the evidence you have selected supports the claim you made. Make sure to write efficiently enough to stay within the allowed word count - if your response is longer than the word count, re-write it more succinctly. Work will only be accepted within this assignment, not through webmail.
This is how each of your 3 pieces of evidence will be evaluated:
evidence is consistent with your heating curve (1pt)
evidence is unique (1pt)
evidence is specific (1pt)
evidence is thoroughly explained (1pt)
Your score for this question will be multiplied by 1.5 for a total of 6 possible points.
What is the first piece of evidence you have from your heating curve to support your claim?
1. The gradual increase in temperature from the minimum temperature of 0°C to the melting point of 45°C indicates a transfer of thermal energy, as the substance's particles begin to overcome their potential energy barriers and increase their kinetic energy.
Would you like to proceed with the second and third pieces of evidence?
yes please, provide all three. the word limit is 70.
2. The sharp increase in temperature from the melting point of 45°C to the boiling point of 85°C signifies a rapid conversion of potential energy to kinetic energy as the substance transitions from a liquid to a gas state.
3. The horizontal line at the boiling point of 85°C, lasting until the maximum temperature of 110°C, demonstrates a constant absorption of energy without a change in temperature, indicating the continued increase in thermal energy associated with the substance remaining in the gas phase.
Give me another example to support our claim.
Another example to support the claim could be:
4. The gradual decrease in temperature as the substance cools from the maximum temperature of 110°C to the boiling point of 85°C, suggests a release of thermal energy as the substance transitions from a gas back to a liquid state.
Give me two more but make them more simple.
5. As the substance melts at 45°C, it gains energy, transitioning from a solid to a liquid state, showcasing the increase in thermal energy.
6. Moving from the boiling point at 85°C to the maximum temperature at 110°C, the substance remains in a gas phase, absorbing energy and increasing its thermal energy significantly.
This is where you will tie your claim and 3 pieces of evidence together to explain the connection between them. This is referred to as reasoning in the scientific world. Do not use the words I, we, you, or think in your writing. You are making statements of fact and your writing must reflect that appropriately. This type of writing, technical or scientific writing, should be in the 3rd person and should be passive in voice. If you need to see an example of this, watch this video. Here are some possible sentence starters/writing words to use:
“Uncertainty” words: usually, generally, suggests, indicates
Sequencing words: first, second, third
Therefore
Because
If… Then…
However
Please re-state your claim and then explain how and why each piece of evidence (that you identified in the previous questions above) supports that claim and then use this format to write your last sentence:
Because (then state the 3 pieces of evidence) demonstrate (state the relationship you made in your claim), this supports the claim asserted that (re-state your claim as is was written in the first question - you can copy and paste it then make it grammatically fit here).
Make sure to spell correctly (use spell check on Word and then copy and paste your writing back over to this assignment), use the same verb tense throughout (all present or all past tense, not a mixture of the two), have your nouns and verbs match whether they are singular or plural, and properly capitalize and punctuate your writing - this matters in science too!
Here is how your reasoning will be evaluated:
claim is restated accurately (1pt)
each piece of evidence is identified (1pt each or 3 pts total)
each piece of evidence is accurately connected to the claim (1pt each or 3 pts total)
the last sentence format is used as outlined (8pts total):
because plus 3 pieces of evidence included (4pts)
demonstrate plus relationship from claim stated (2pts)
this supports the claim asserted that plus claim restated (2pts)
appropriate spelling and grammar (2pts)
Your score for this question will be multiplied by 1.5 and rounded up for a total of 25 possible points.