When using a manometer to check Boyle's law, why is the pressure changed slowly?
a. to avoid compressing the liquid
b. to avoid compressing the gas
c. to avoid changing the gas temperature
d. to avoid changing the mass of the gas
Is it B?
No.
My next guess is C.
Yes, you're right.
Thank you
Yes, the correct answer is b. to avoid compressing the gas.
When using a manometer to check Boyle's law, the pressure should be changed slowly to avoid compressing the gas. Boyle's law states that at a constant temperature, the volume of a gas is inversely proportional to its pressure. When pressure is rapidly changed, the gas molecules may not have enough time to adjust, leading to inaccurate readings.
To ensure accurate results, the pressure should be changed gradually, allowing the gas to reach equilibrium at each pressure point before taking measurements. This allows the gas molecules to adjust to the new pressure and ensures that the readings obtained are a true measure of the relationship between pressure and volume described by Boyle's law.
Option b., to avoid compressing the gas, is the correct choice because slowly changing the pressure avoids sudden compression of the gas, allowing it to reach equilibrium and provide accurate measurements.