Directions for: The questions consist of two statements each, printed as assertion and reason. While answering these questions you are required to choose any one of the following five responses A. If both the Assertion and the Reason are true and the Reason is a correct explanation of the Assertion. B. If both the Assertion and the Reason are true but the Reason is not a correct explanation of Assertion. C. If the Assertion is true but the Reason is false. D. If both the Assertion and the Reason are false. E. If Assertion is false but Reason is true.
Assertion: In adiabatic compression, the internal energy and temperature of the system pet decreased. Reason: The adiahatic compression is a slow process.A) A
B) B
C) C
D) D
E) E
Correct Answer: D
Solution :
When a system undergoes a change under the condition that no exchange of heat takes place between the system and surrounding, then such a process is called adiabatic process. For such a process to take place it is necessary that the system be perfectly insulated from the surroundings. In practice, there is no material which is perfectly insulating. Hence, perfect adiabatic process is impossible. But when a process takes place very rapidly so that the heat does not find time to flow in or out then the process is adiabatic.
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