Imagine two pure samples of gas in identical closed containers: sample A and sample B. Sample B has a lower temperature than sample A.
Each of the statements below is true about the samples. Complete the table.
Contributes to the
temperature difference
Does not contribute to
the temperature
difference
The particles in sample B have a
lower average speed than the
particles in sample A.
Each particle in sample A has more
mass than each particle in sample B.
The total mass of sample A is higher
than the total mass of sample B.

where is the following

explanation:

a mercury barometer is a device that uses the physical properties of mercury in a tube to measure barometric pressure. mercury barometers are used for : -

1. measurement of atmospheric pressure  

2. determining the altitude of a place

3. weather forecasting

4. calibration and checking of aneroid barometers

5. application in fluid mechanics

6. measurement of pressure in aircrafts

7. surface weather analysis

8. preparation of barographs

9. usage in physical sciences like physics, astronomy & chemistry

10. preparation of aircraft altimeters

characteristics of mercury barometer : -

1.used to define and measure atmospheric pressure.

2.on the average at sea level the column of mercury rises to a height of about 760 mm.

3.this quantity is equal to 1 atmosphere.

4.it is also known as standard atmospheric pressure.

5.a barometer in which the weight of a column of mercury in a glass tube with a sealed top is balanced against that of the atmosphere pressing on an exposed cistern of mercury at the base of the mercury column, the height of the column varying with atmospheric pressure.