Question

3. Meena took some ice cubes from the refrigerator and kept outside in a vessel. After few
minutes ice cubes started to melt. What does she infer?
a .increase in temperature caused melting of ice cubes
b. decrease in temperature caused melting of ice cubes
C.Pressure variation caused melting of ice cubes
d. Humidity in air caused melting of ice cubes
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Answer 1

Answer:

Meena took some ice cubes from the refrigerator and kept outside in a vessel. After few minutes ice cubes started to melt. What does she infer?

a. increase in temperature caused melting of ice cubes

Explanation:

• When Meena took ice out of the refrigerator and kept outside in vessel, ice starts to melt immediately because the temperature inside refrigerator is low and temperature outside the refrigerator is high that is warm. Therefore ice start to melts.
• Water freeze at zero degree Celsius, but temperature is not zero degree Celsius outside refrigerator.
• The ice which was in form of solid turns into liquid when kept outside the refrigerator.
• It starts to melt on its own at room temperature. Ice have low temperature and outside surrounding have high temperature.
• When water is in solid form (ice cube) it takes smaller area while ice when turns into liquid takes much more area than earlier.

Hence, Increase in temperature caused melting of ice cubes.