Which of the following instruments can be used to measure the excess pressure of a trapped mass of gas?
Hygrometer.
Thermometer.
Manometer.
Barometer.
A container is filled with a sample of an ideal gas at a pressure of 1.5 atm. The gas is compressed isothermally to one-fourth of its original volume.
What is the new pressure of the gas in atmospheres?
1.
3.
6.
4.