Thermodynamics Question 17
Question: When a gas expands adiabatically
[CPMT 1990]
Options:
A) The pressure decreases with altitude
B) The pressure increases with depth
C) The pressure remains the same
D) The pressure may increase or decrease depending upon the nature of the gas
Show Answer
Answer:
Correct Answer: A
Solution:
Due to compression the temperature of the system increases to a very high value.
This causes the flow of heat from system to the surroundings, thus decreasing the temperature.
This decrease in temperature results in decrease in pressure.
BETA
