Directions: In this section, the following sentence has a blank space and is followed by four words. Select the word you consider most appropriate to fill in the blank space and indicate your response on the Answer Sheet accordingly. The first law of thermodynamics states that whereas energy can be ____________ from one form into another, it cannot be created or destroyed.
transformed
Understanding the First Law of Thermodynamics and Energy Transformation
The question asks us to complete a sentence describing the First Law of Thermodynamics by selecting the most appropriate word from the given options. The sentence highlights a key aspect of this fundamental law: energy can change its form but is not created or destroyed.
Let's analyze the provided sentence:
"The first law of thermodynamics states that whereas energy can be ____________ from one form into another, it cannot be created or destroyed."
The blank space requires a word that accurately describes the process of energy changing from one form (like potential energy) to another (like kinetic energy, heat energy, etc.).
Analyzing the Options
Let's look at each option and evaluate its suitability:
- reduced: This word means to make something smaller in amount, extent, or size. While energy values might decrease during inefficient transformations (with some energy being lost as unusable heat), the core principle is not about reducing the total energy but changing its form. So, "reduced" is not the correct word to describe the change in form.
- induced: This word means to bring about or give rise to something. While a process can induce energy transformations, "induced" itself doesn't describe the act of changing form. It's more about causing the change rather than being the change itself.
- performed: This word means to carry out, accomplish, or fulfill an action. Energy transformations are processes that are "performed" by systems, but energy itself isn't "performed" from one form to another. The word describes the action, not the transformation process of the energy.
- transformed: This word means to make a thorough or dramatic change in form or appearance. In physics, particularly in thermodynamics, "transformed" is the standard term used to describe energy changing from one type (like chemical potential energy) to another (like thermal energy or mechanical work). This perfectly fits the context of the sentence which states energy changes "from one form into another."
The Correct Word for Energy Change
Based on the analysis, the word that precisely describes energy changing "from one form into another" is "transformed". The First Law of Thermodynamics is often summarized by saying that energy is conserved; it can be transformed from one type to another but the total amount remains constant in a closed system.
Therefore, the completed sentence should read:
"The first law of thermodynamics states that whereas energy can be transformed from one form into another, it cannot be created or destroyed."
Revision Table: Evaluating Options
| Option | Meaning | Fits the Context? | Reasoning |
|---|---|---|---|
| Reduced | Made smaller | No | Doesn't describe changing form. |
| Induced | Brought about, caused | No | Describes causing the change, not the change of form itself. |
| Performed | Carried out, accomplished | No | Describes an action, not the energy changing form. |
| Transformed | Changed in form or appearance | Yes | Precisely describes energy changing from one form to another. |
Additional Information: The First Law of Thermodynamics
The First Law of Thermodynamics is a version of the law of conservation of energy, adapted for thermodynamic systems. It states that energy cannot be created or destroyed, but it can be transferred or changed from one form to another.
Mathematically, the First Law is often expressed as:
\( \Delta U = Q - W \)
Where:
- \( \Delta U \) is the change in the internal energy of the system.
- \( Q \) is the heat added to the system.
- \( W \) is the work done by the system.
This equation shows that the change in internal energy of a system depends on the heat flowing into or out of the system and the work done by or on the system. This is a direct application of the principle that energy is conserved and transformed.
Understanding energy transformations is crucial in many areas of science and engineering, from power generation (e.g., converting chemical energy in fuel to thermal energy and then electrical energy) to biological processes (e.g., converting chemical energy in food into mechanical work and heat). The First Law of Thermodynamics provides the fundamental principle governing these transformations.
Similar Questions
Directions: Each of the following sentences in this section has a blank space and four words or groups of words given after the sentence. Select whichever word or group of words you consider most appropriate for the blank space and indicate your response on the Answer Sheet accordingly.
We fail to understand your reasons for ______ the college without completing the degree.
Directions: Each of the following sentences in this section has a blank space and four words or groups of words given after the sentence. Select whichever word or group of words you consider most appropriate for the blank space and indicate your response on the Answer Sheet accordingly.
She ______ her energy and started shouting only when she heard the noise of bulldozers and cranes.
Directions: Each of the following sentences in this section has a blank space and four words or groups of words given after the sentence. Select whichever word or group of words you consider most appropriate for the blank space and indicate your response on the Answer Sheet accordingly.
The British _______ all over Africa and Asia collapsed in the first half of the twentieth century.
Directions: Each of the following sentences in this section has a blank space and four words or groups of words given after the sentence. Select whichever word or group of words you consider most appropriate for the blank space and indicate your response on the Answer Sheet accordingly.
The football match has to be _______ because of the weather.
Directions: Each of the following sentences in this section has a blank space and four words or groups of words given after the sentence. Select whichever word or group of words you consider most appropriate for the blank space and indicate your response on the Answer Sheet accordingly.
If I were rich, ______ a lot.
Directions: Each of the following sentences in this section has a blank space and four words or groups of words given after the sentence. Select whichever word or group of words you consider most appropriate for the blank space and indicate your response on the Answer Sheet accordingly.
They apologized ______ me for what had happened.
Directions: Each of the following sentences in this section has a blank space and four words or groups of words given after the sentence. Select whichever word or group of words you consider most appropriate for the blank space and indicate your response on the Answer Sheet accordingly.
If you are tired of swimming, just ______ for a while.
Directions: Each of the following sentences in this section has a blank space and four words or groups of words given after the sentence. Select whichever word or group of words you consider most appropriate for the blank space and indicate your response on the Answer Sheet accordingly.
He had ______ spoken for two minutes when there was a commotion in the crowd.
Directions: Each of the following sentences in this section has a blank space and four words or groups of words given after the sentence. Select whichever word or group of words you consider most appropriate for the blank space and indicate your response on the Answer Sheet accordingly.
I would not commit myself _____that course of action.
Directions: Each of the following sentences in this section has a blank space and four words or groups of words given after the sentence. Select whichever word or group of words you consider most appropriate for the blank space and indicate your response on the Answer Sheet accordingly
The soldiers waiting to go into battle for the first time were full of_____.
Important Questions from Fill in the Blanks
Directions: Fill in the blanks with the word that best completes the sentence.
At times he gets very angry, and then no one can_______ him.
Each of the following sentences has a blank space and four words are given below it. Select the word or group of words you consider most appropriate for the blank space and indicate your response accordingly.
Many people today have fallen into utter confusion of values with the result that they cannot______ the good from the bad.
Each of the following sentences has a blank space and four words are given below it. Select the word or group of words you consider most appropriate for the blank space and indicate your response accordingly
If Mohan________ at 5 a.m., he would not have missed the train.
Each of the following sentences has a blank space and four words are given below it. Select the word or group of words you consider most appropriate for the blank space and indicate your response accordingly.
His property was divided ______ his daughters and sons.
Each of the following sentences has a blank space and four words are given below it. Select the word or group of words you consider most appropriate for the blank space and indicate your response accordingly
His persistence in his misdemeanours has lowered him in the________ of everyone who knows him.
