A sample of a gas is in a rigid container with a fixed volume. The temperature of the gas is decreased. Based on the relationship between temperature and pressure, what must have happened to the pressure?
No random answers and explain why that's the answer
A Pressure decreased.
B Pressure stayed the same.
C Pressure trend can not be determined.
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Answer:
Based on the relationship between temperature and pressure, if the temperature of a gas in a rigid container with a fixed volume is decreased, the pressure must have decreased as well. This is known as Charles's Law, which states that at constant volume, the pressure of a gas is directly proportional to its temperature. As the temperature decreases, the average kinetic energy of the gas particles decreases, causing them to collide with the container walls with less force, resulting in a decrease in pressure. Therefore, the correct answer is A: Pressure decreased.