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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is latent heat?
💡 Hint: Think about what happens when ice melts.
Question 2
Easy
What is the formula for the latent heat of vaporization?
💡 Hint: Recall the components of a heat phase change formula.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the latent heat of vaporization?
- Heat for melting
- Heat for boiling
- Heat for freezing
💡 Hint: Think about boiling water.
Question 2
True or False: Latent heat of vaporization causes a temperature increase during a state change.
- True
- False
💡 Hint: Recall how energy is used in phase changes.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A 2 kg sample of water is heated from 25°C to boiling and then all of it is turned into steam. Calculate the total energy required, knowing the specific heat of water is 4.18 J/g°C and L_v is 2260 J/g.
💡 Hint: Split it into two parts: heating and phase change.
Question 2
Discuss how the latent heat of vaporization affects the cooling process of sweat on the skin.
💡 Hint: Connect evaporative cooling mechanisms with latent heat.
Challenge and get performance evaluation