Advertisements
Advertisements
प्रश्न
It is difficult to cook vegetables on hills and mountains. Explain the reason.
Advertisements
उत्तर
This is because at high altitudes atmospheric pressure is low; therefore, boiling point of water decreases and so it does not provide the required heat energy for cooking.
APPEARS IN
संबंधित प्रश्न
Explain the term vaporization.
Explain the terms boiling point.
Describe an experiment to demonstrate that water absorbs heat during boiling at a constant temperature.
Boiling of egg results in ______ change.
The boiling points of diethyl ether, acetone and n-butyl alcohol are 35°C, 56°C and 118°C respectively. Which one of the following correctly represents their boiling points in kelvin scale?
Evaporation of a liquid at room temperature leads to a ____________ effect.
Conversion of solid to vapour is called sublimation. Name the term used to denote the conversion of vapour to solid.
Why does the temperature of a substance remain constant during its melting point or boiling point?
Assertion (A): No-new substance is formed when water is heated to get steam.
Reason (R): Conversion of water into steam is a physical change.
A liquid changes into a gas at a constant temperature known as its ______.
