At a particular temperature, an equilibrium mixture the reaction below was found to contain 0.747 atm of I2, 0.724 atm of H2 and 5.59 atm of HI. Calculate the value of the equilibrium constant, Kp at this temperature. H2(g) + I2(g) <=> 2 HI(g)

57.78

Explanation:

The question asks to calculate the equilibrium constant value Kp at a particular temperature.

To do this, we firstly need to write the correct expression for the equilibrium constant. We do this as follows;

Kp = [HI]^2/([I2][H2]

Kp = (5.59)^2/(0.747*0.724)

Kp = 31.2481/0.5408

Kp = 57.78

answer; ///(d) the correct answer is double or triple

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.