Question

4. Which one of the following is an incorrect statement?

• A. Evaporation takes place at all temperatures.
• B. Evaporation causes a change in state.
• C. Evaporation takes place at a fixed temperature.
• D. Evaporation is a slow process.

Answer 1

The correct option is C

Evaporation takes place at a fixed temperature.

• Hint: The process of conversion of liquid into vapor is known as evaporation.

Explanation of correct option:

(C):

• Evaporation can occur at any temperature.
• As temperature increases, evaporation takes place faster and vice versa.

Explanation of incorrect option:

(A):

• Evaporation takes place at all temperatures even in sunlight or in shade evaporation takes place but at a different rate.

(B):

• Evaporation is a process where liquid changes into a vapor(gas) state.
• So, evaporation causes a change in the state.

(D):

• Evaporation is a slow process because it occurs at any temperature.
• As temperature increases, evaporation takes place faster but it occurs all the time in sunlight or shade.

Conclusion: Evaporation takes place at a fixed temperature is an incorrect statement. Hence, option (C) is correct.