Table of Contents
Explain the first law of thermodynamics.
When work is done through heat, heat and work are proportional to each other. That is, energy can be transformed into heat, internal energy, and work, but it cannot be created or destroyed. This is the main idea of the first law of thermodynamics.
What are the three laws of thermodynamics?
The three laws of thermodynamics are written in various ways. Here are the three laws in simple language:
- First law of thermodynamics: Energy can be transformed into heat, internal energy, or work, but it cannot be becomes unusable.
- Second law of thermodynamics: When energy is transformed from one form to another, some energy always becomes unusable.
- Third law of thermodynamics: It is impossible of reach absolute zero temperature.
What is the zeroth law of thermodynamics? Write one application of this law.
If two systems are in thermal equilibrium with a third system, then the first two systems are also in thermal equilibrium with each other. Based on this law, thermometers are made.
Explain surface runoff in plants.
The rainwater that passes through or drips down from the branches, leaves, etc. of a plant and reaches the ground is called surface runoff in plants. If plants did not have a cover, raindrops would directly hit the exposed surface of the earth.
Explain surface runoff.
A large portion of rainwater flows over the earth’s surface and enters rivers and stream, and from there, it flows into the oceans. This is called surface runoff.
What is an aquifer? Explain.
When the surface water on the earth enters the interior of the earth and reaches an impermeable rock layer, it cannot go deeper. Rather, it accumulates in the small pores or cracks of the rocks or sediments above that rock layer. The underground reservoir thus formed is called an aquifer.
What is an unconfined aquifer?
A confined aquifer is located much deeper in the soil than an unconfined aquifer. There are two impermeable rock layers above and below this aquifer. Water cannot enter this impermeable layer, water will come out of those cracks or holes and reach the surface without the application of any external force.
What is an artesian well? Explain.
If there are any cracks or holes in the impermeable layers of a confined aquifer, water will come out of those cracks or holes and reach the surface without the application of any external force. When high-pressure water from the aquifer comes out of the cracks or holes in this way, it is called an artesian well.
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