The emitted or absorbed heat which changes the state of the substance but does not cause any change in temperature is called latent heat. This energy is used for phase transitions, such as melting or boiling, without altering the substance’s ...
Category: Class 10 Science
NCERT Solutions for Class 10 Science and important questions for CBSE class 10 for session 2020-2021
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Mercury is generally used in thermometers because it has high density. Its high density allows for precise and easily readable measurements due to the small size of the thermometer’s scale. Additionally, mercury’s low freezing point and wide liquid range make ...
Running a fan in hot weather gives comfort because our sweat evaporates faster. The moving air increases the evaporation rate of sweat from our skin, which cools the body through the process of evaporative cooling.
The function of a thermostat in a refrigerator is to maintain the same temperature. It regulates the cooling system, turning it on and off to ensure the internal temperature stays within a set range, thus preserving food at a consistent ...
It snows on high hills because the temperature is lower than the freezing point, causing water vapor to freeze and turn into ice. As air rises over the hills, it cools, and if the temperature drops below freezing, the water ...