Class 9 Exam > Class 9 Questions > Identify the incorrect statement about evapor...
Start Learning for Free
Identify the incorrect statement about evaporation
(A) It causes cooling
(B) It increase with increase in humidity
(C) It decreases with increase in temperature
(D) It increases with increase in wind speed
(A) It causes cooling
(B) It increase with increase in humidity
(C) It decreases with increase in temperature
(D) It increases with increase in wind speed
- a)(B) and (C) are incorrect
- b)(A), (B) and (C) are correct
- c)(A) and (B) are correct
- d)All of these
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Identify the incorrect statement about evaporation(A) It causes coolin...
The rate of evaporation increases with increase in temperature, surface area & wind speed but decrease by the increase in humidity.
Most Upvoted Answer
Identify the incorrect statement about evaporation(A) It causes coolin...
Explanation:
Evaporation is the process by which a liquid changes into its gaseous state. It occurs when the molecules of a liquid gain enough energy to break free from the liquid's surface and become vapor. Evaporation is an important part of the water cycle and plays a significant role in weather patterns and climate.
A) It causes cooling:
When a liquid evaporates, it absorbs heat from its surroundings. This heat is used to break the intermolecular bonds between the liquid molecules and convert them into vapor. As a result, the temperature of the surroundings decreases, leading to a cooling effect. This is why we feel cool when sweat evaporates from our skin on a hot day.
B) It increases with an increase in humidity:
Humidity refers to the amount of moisture present in the air. The rate of evaporation is influenced by the humidity level. When the air is already saturated with moisture, it becomes more difficult for water to evaporate into the air. Therefore, evaporation decreases with an increase in humidity.
C) It decreases with an increase in temperature:
Temperature is a crucial factor affecting the rate of evaporation. As the temperature increases, the kinetic energy of the liquid molecules also increases. This increased kinetic energy leads to more frequent and energetic collisions between the liquid molecules, which promotes the escape of molecules into the vapor phase. Therefore, evaporation increases with an increase in temperature.
D) It increases with an increase in wind speed:
Wind speed plays a significant role in the process of evaporation. When there is a high wind speed, it causes the air to move rapidly over the liquid surface, carrying away the water vapor that has already evaporated. This movement of air helps to maintain a concentration gradient between the liquid and the surrounding air, which enhances the rate of evaporation. Therefore, evaporation increases with an increase in wind speed.
Based on the above explanations, the incorrect statement about evaporation is option B) It increases with an increase in humidity.
Evaporation is the process by which a liquid changes into its gaseous state. It occurs when the molecules of a liquid gain enough energy to break free from the liquid's surface and become vapor. Evaporation is an important part of the water cycle and plays a significant role in weather patterns and climate.
A) It causes cooling:
When a liquid evaporates, it absorbs heat from its surroundings. This heat is used to break the intermolecular bonds between the liquid molecules and convert them into vapor. As a result, the temperature of the surroundings decreases, leading to a cooling effect. This is why we feel cool when sweat evaporates from our skin on a hot day.
B) It increases with an increase in humidity:
Humidity refers to the amount of moisture present in the air. The rate of evaporation is influenced by the humidity level. When the air is already saturated with moisture, it becomes more difficult for water to evaporate into the air. Therefore, evaporation decreases with an increase in humidity.
C) It decreases with an increase in temperature:
Temperature is a crucial factor affecting the rate of evaporation. As the temperature increases, the kinetic energy of the liquid molecules also increases. This increased kinetic energy leads to more frequent and energetic collisions between the liquid molecules, which promotes the escape of molecules into the vapor phase. Therefore, evaporation increases with an increase in temperature.
D) It increases with an increase in wind speed:
Wind speed plays a significant role in the process of evaporation. When there is a high wind speed, it causes the air to move rapidly over the liquid surface, carrying away the water vapor that has already evaporated. This movement of air helps to maintain a concentration gradient between the liquid and the surrounding air, which enhances the rate of evaporation. Therefore, evaporation increases with an increase in wind speed.
Based on the above explanations, the incorrect statement about evaporation is option B) It increases with an increase in humidity.
Free Test
FREE
| Start Free Test |
Community Answer
Identify the incorrect statement about evaporation(A) It causes coolin...
A
Attention Class 9 Students!
To make sure you are not studying endlessly, EduRev has designed Class 9 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 9.
|
Explore Courses for Class 9 exam
|
|
Similar Class 9 Doubts
Top Courses for Class 9View all
Identify the incorrect statement about evaporation(A) It causes cooling(B) It increase with increase in humidity(C) It decreases with increase in temperature(D) It increases with increase in wind speeda)(B) and (C) are incorrectb)(A), (B) and (C) are correctc)(A) and (B) are correctd)All of theseCorrect answer is option 'B'. Can you explain this answer?
Question Description
Identify the incorrect statement about evaporation(A) It causes cooling(B) It increase with increase in humidity(C) It decreases with increase in temperature(D) It increases with increase in wind speeda)(B) and (C) are incorrectb)(A), (B) and (C) are correctc)(A) and (B) are correctd)All of theseCorrect answer is option 'B'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Identify the incorrect statement about evaporation(A) It causes cooling(B) It increase with increase in humidity(C) It decreases with increase in temperature(D) It increases with increase in wind speeda)(B) and (C) are incorrectb)(A), (B) and (C) are correctc)(A) and (B) are correctd)All of theseCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Identify the incorrect statement about evaporation(A) It causes cooling(B) It increase with increase in humidity(C) It decreases with increase in temperature(D) It increases with increase in wind speeda)(B) and (C) are incorrectb)(A), (B) and (C) are correctc)(A) and (B) are correctd)All of theseCorrect answer is option 'B'. Can you explain this answer?.
Identify the incorrect statement about evaporation(A) It causes cooling(B) It increase with increase in humidity(C) It decreases with increase in temperature(D) It increases with increase in wind speeda)(B) and (C) are incorrectb)(A), (B) and (C) are correctc)(A) and (B) are correctd)All of theseCorrect answer is option 'B'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Identify the incorrect statement about evaporation(A) It causes cooling(B) It increase with increase in humidity(C) It decreases with increase in temperature(D) It increases with increase in wind speeda)(B) and (C) are incorrectb)(A), (B) and (C) are correctc)(A) and (B) are correctd)All of theseCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Identify the incorrect statement about evaporation(A) It causes cooling(B) It increase with increase in humidity(C) It decreases with increase in temperature(D) It increases with increase in wind speeda)(B) and (C) are incorrectb)(A), (B) and (C) are correctc)(A) and (B) are correctd)All of theseCorrect answer is option 'B'. Can you explain this answer?.
Solutions for Identify the incorrect statement about evaporation(A) It causes cooling(B) It increase with increase in humidity(C) It decreases with increase in temperature(D) It increases with increase in wind speeda)(B) and (C) are incorrectb)(A), (B) and (C) are correctc)(A) and (B) are correctd)All of theseCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 9.
Download more important topics, notes, lectures and mock test series for Class 9 Exam by signing up for free.
Here you can find the meaning of Identify the incorrect statement about evaporation(A) It causes cooling(B) It increase with increase in humidity(C) It decreases with increase in temperature(D) It increases with increase in wind speeda)(B) and (C) are incorrectb)(A), (B) and (C) are correctc)(A) and (B) are correctd)All of theseCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Identify the incorrect statement about evaporation(A) It causes cooling(B) It increase with increase in humidity(C) It decreases with increase in temperature(D) It increases with increase in wind speeda)(B) and (C) are incorrectb)(A), (B) and (C) are correctc)(A) and (B) are correctd)All of theseCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for Identify the incorrect statement about evaporation(A) It causes cooling(B) It increase with increase in humidity(C) It decreases with increase in temperature(D) It increases with increase in wind speeda)(B) and (C) are incorrectb)(A), (B) and (C) are correctc)(A) and (B) are correctd)All of theseCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of Identify the incorrect statement about evaporation(A) It causes cooling(B) It increase with increase in humidity(C) It decreases with increase in temperature(D) It increases with increase in wind speeda)(B) and (C) are incorrectb)(A), (B) and (C) are correctc)(A) and (B) are correctd)All of theseCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Identify the incorrect statement about evaporation(A) It causes cooling(B) It increase with increase in humidity(C) It decreases with increase in temperature(D) It increases with increase in wind speeda)(B) and (C) are incorrectb)(A), (B) and (C) are correctc)(A) and (B) are correctd)All of theseCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 9 tests.
|
|
Explore Courses for Class 9 exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup