Two different gases are stored in separate closed containers. if both gases have a temperature of 50°c, which statement is true?

a. the thermal energies of gas molecules in the two containers are unrelated.

b. the gas molecules in both containers will absorb heat from the surroundings.

c. the molecules in one gas will transfer energy to the molecules in the other gas.

d. the gas molecules in both containers have the same average kinetic energy.

Option (D) is the correct answer.

Explanation:

When a gas contains vibrational, translational, and rotational kinetic energies then their sum is known as average kinetic energy.

Therefore, when two molecules are mixed together at a certain temperature then the molecules of respective gases collide in each of the containers. Thus, these particles will have vibrational, translational, and rotational kinetic energies, that is, average kinetic energy.

Hence, we can conclude that the gas molecules in both containers have the same average kinetic energy.

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.

m=9

step-by-step explanation: