Question:
A system is compressed adiabatically, then its temperature
A system is compressed adiabatically, then its temperature
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In an adiabatic process no heat flows, so work done on the gas raises its internal energy.
Updated On: Nov 13, 2026
increases.
decreases.
becomes zero.
remains constant.
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept
In an adiabatic process \(Q=0\), so the first law gives \(\Delta U=-W\).
Step 2: Compression
During compression, work is done on the gas, so \(W\) by the gas is negative and \(\Delta U>0\).
Step 3: Result
Internal energy of an ideal gas depends on temperature, so the temperature rises.
Final Answer:
The temperature of the system increases. \[ \boxed{\text{(A) }\text{increases.}} \]
In an adiabatic process \(Q=0\), so the first law gives \(\Delta U=-W\).
Step 2: Compression
During compression, work is done on the gas, so \(W\) by the gas is negative and \(\Delta U>0\).
Step 3: Result
Internal energy of an ideal gas depends on temperature, so the temperature rises.
Final Answer:
The temperature of the system increases. \[ \boxed{\text{(A) }\text{increases.}} \]
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