Experiment 1: Calculating the latent heat of fusion** 1. Gather your materials: a kettle, a balance, a thermometer, water, and ice. 2. Use the same kettle and balance for both experiments. 3. Measure 500ml of water and pour it into the kettle. 4. Place the kettle on the balance and record its weight. 5. Measure the temperature of the water and record it. 6. Add 100g of ice to the kettle. 7. Turn on the kettle and start a timer. 8. Stop the timer when the kettle boils and record the final temperature of the water. 9. Use the recorded data to calculate the latent heat of fusion using the appropriate formula. 10. Repeat steps 3-9 several times to ensure consistent results. **Experiment 2: Calculating the latent heat of vaporization** 1. Gather your materials: a kettle, a balance, a thermometer, and water. 2. Use the same kettle and balance as in Experiment 1. 3. Measure 600ml of water and pour it into the kettle. 4. Place the kettle on the balance and record its weight. 5. Turn on the kettle and start a timer when the water boils. 6. Observe the weight of the kettle decreasing as the water evaporates. 7. Use the recorded data to calculate the latent heat of vaporization using the appropriate formula. 8. Repeat steps 3-7 several times to ensure consistent results.
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
I want to compare the latent heat of fusion and vaporaisation through my experiment. I have kept most of the variables the same. Would this be a valid experiment?
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**Experiment 1: Calculating the latent heat of fusion**
1. Gather your materials: a kettle, a balance, a thermometer, water, and ice.
2. Use the same kettle and balance for both experiments.
3. Measure 500ml of water and pour it into the kettle.
4. Place the kettle on the balance and record its weight.
5. Measure the temperature of the water and record it.
6. Add 100g of ice to the kettle.
7. Turn on the kettle and start a timer.
8. Stop the timer when the kettle boils and record the final temperature of the water.
9. Use the recorded data to calculate the latent heat of fusion using the appropriate formula.
10. Repeat steps 3-9 several times to ensure consistent results.
**Experiment 2: Calculating the latent heat of vaporization**
1. Gather your materials: a kettle, a balance, a thermometer, and water.
2. Use the same kettle and balance as in Experiment 1.
3. Measure 600ml of water and pour it into the kettle.
4. Place the kettle on the balance and record its weight.
5. Turn on the kettle and start a timer when the water boils.
6. Observe the weight of the kettle decreasing as the water evaporates.
7. Use the recorded data to calculate the latent heat of vaporization using the appropriate formula.
8. Repeat steps 3-7 several times to ensure consistent results.
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