Answer:
2.1 °C/m
Explanation:
Hello, for this exercise, consider the formula:
Considering that the difference in the temperature is 0.284°C, and the given molality by:
Now, solving for 
, we get:
Best regards.
Answer: Chemical change
Explanation:
Physical change is a change where there is a change in size , shape etc and no new products are formed.
Chemical change is a change where there is a change in chemical composition as new products are formed.
Example: Formation of soap and glycerin from fat and sodium hydroxide is a chemical change as the chemical bonds are getting rearranged to form new products.
Hello!
The reaction Heat or ΔH corresponds to the interval A
Reaction Heat is defined as the net change in enthalpy in a chemical reaction. To measure Reaction Heat, the intermediate path doesn't matter, but only the initial and final states.
So, the interval that measures the difference between the initial and final states in this reaction is the interval A, and calculating the enthalpy difference between those two points will give the ΔH of reaction.
Have a nice day!
