why in barometers mercury is preferred to measure pressure but not the water?

Q: If flask B were smaller than flask A, would the final pressure after the stopcock is opened be…

A: Final pressure after stopcock opens       When the stopcock opens, gas expands to occupy both the…

Q: Compare diffusion and effusion. Explain the relationshipbetween the rates of these processes and the…

A: Diffusion and effusion both involve the movement of gas particles.

Q: In which situation must you do more work: inflating a balloon at sea level or inflating the same…

A: That work done at constant pressure is dW = pdV  That pressure at sea level is more than pressure at…

Q: Liquid mercury has a density of 13.534 g/mL. If a barometer (used to measure pressure) requires…

A: Given : Density of mercury = 13.534 g/mL And volume of mercury required = 12.00 mL

Q: Calculate the relative effusion rates of bromine and argon.

A: According to Graham's law , at constant temperature and pressure the rate of effusion of a gas is…

Q: Would the volume be different if the gas was argon (under the same conditions)? Match the words in…

A: ideal gas volume is independent of molar mass of the gas.

Q: What is reciprocal pressure?

A: The pressure is denoted by 'P'. Reciprocal pressure is the inverse of pressure. According to Boyle's…

Q: A sample of carbon monoxide was collected over water at a total pressure of 761 torr and a…

A: According to the Dalton’s law of partial pressure, the total pressure of a mixture of non-reacting…

Q: Why is Mercury used in barometers instead of water?

A: The density of mercury is 13.6 g/mL and water is 1 g/mL

Q: Use the kinetic molecular theory to explain why the pressure of a gas in a fixed-volume container…

A: Kinetic molecular theory attempts to explain the behaviour of gases with theoretical assumptions .…

Q: Calculate the molecular weight (mass) of a gaseous element if 0.480 g of the gas occupies 367 mL at…

A: Given,  Mass of the element = 0.480 g  Volume, V = 367 mL = (367/1000) = 0.367 L  Pressure, P = 365…

Q: How does a barometer work? Is the column of mercury in a barometer shorter when it is on a…

A: Barometer is a device which is used to measure the atmospheric pressure. The most commonly used…

Q: A 250MI stoppered The pressure of the torr. What would the the flask was transfe

A:

Q: A sample of nitrogen occupies 750 mL at 24 degrees Celsius at 595 torr. At what temperature ( in…

A:

Q: . A barometer reading shows that air pressure is 750 mm Hg. Is the air pressure above or below…

A:

Q: Describe s Dalton’s law of partial pressures?

A: Dalton's law of partial pressure has to be described.

Q: What happens to the pressure of a gas in a closed container if you double itsvolume while its…

A: The objective of the reaction is to explain about the observation on the pressure of the gas in a…

Q: A typical barometric pressure in Kansas City is 740 torr. What is this pressure in atmospheres, in…

A: Given, pressure = 740 torr Conversions required for calculating the pressure in the given units are,…

Q: What is the pressure exerted by a 1.56 mol sample of water at 3.0L and 24oC?

A:

Q: What are the common units of pressure? List them in order of smallest to largest unit.

A: Pressure is the perpendicular force per unit area. The formula is given by Pressure=ForceArea

Q: What are the basic postulates of kinetic molecular theory? How does the concept of pressure follow…

A: The kinetic molecular theory of gases can be stated as four postulates. 1) A gas consists of…

Q: Which gas law does NOT have a directly proportional relationship between its properties? Boyle…

A: The gas law that does NOT have a directly proportional relationship between its properties has to be…

Q: A typical barometric pressure in Kansas City is 740 torr. What is this pressure in atmospheres, in…

A: The pressure is expressed in term of many units which are interconvertible.  a).we know that,  760…

Q: Why is it necessary to use a nonvolatile liquid in a barometer or manometer?

A: For the measurement of atmospheric pressure, the instrument named barometer is used. It is an…

Q: Explain how a barometer and a manometer work to measure the pressure of theatmosphere or the…

A: The working of barometer and manometer to measure the pressure of atmosphere (or) pressure of gas in…

Q: What is the density of carbon tetrachloride vapor at 714 torr and 125 °C?

A: Since PM = dRT  where P = pressure in atm  M = molar mass in g/mol d = density in g/L R = 0.0821 T =…

Q: In the barometer invented by Torricelli, would we expect the column of mercury higher or shorter on…

A: Barometer seems to be a technical device for measuring atmospheric pressure. The glass tube of a…

Q: A typical bicycle tire is inflated with air to a pressure of 55 psi. How many atmospheres is this?…

A: The amount of force applied on per unit area of an object or substance is called pressure.…

Q: how to calculate partial pressure.?

A: In a container, if there is mixture of gases, then the total pressure of the gas is the sum of the…

Q: Devices used to measure pressure include:

A: The most common device used for the measurement of pressure is barometer. A manometer is also a good…

Q: What would be the relative average kinetic energies for the water vapor, helium, and oxygen gas at…

A:

Q: How does the pressure of a gas vary if at all if you halve its volume and double its Kelvin…

A:

Q: If all the He was transferred to a new container with a pressure of 1.02 atm at 298 K, what volume…

A:

Q: True or false. In a closed rigid container filled with gas molecules, the pressure exerted by the…

A: Given statement : In a closed rigid container filled with gas molecules, the pressure exerted by the…

Q: A closed container is filled with oxygen. The pressure in the container is 415 kPakPa . What is the…

A: We have to calculate the pressure in torr .

Q: In a closed-end manometer, the mercury level in the arm attached to the flask can never be higher…

A: In closed-end manometer, the level of mercury in the arm attached to the flask cannot be higher than…

Q: 22. A mercury manometer is used to measure pressure in the container illustrated. Calculate the…

A: The difference between the mercury levels on the two sides of the tube is a measure of the pressure…

Q: The hydrogen produced from the reaction between zinc and hydrochloric acid is collected over water…

A:

Q: Why is mercury generally used for barometers instead of water?

A: Mercury is used in barometers instead of water. It has many advantages such as: 1) The density of…

Q: How does the barometer works ? And what is it

A:

Q: To what temperature must it be heated to raise its volume to 1300 L

A: Given :- Initial volume = 930 L   Initial temperature = 13oC Final volume = 1300 L  To find = Final…

Q: Which assumptions of the kinetic–molecular theory explain the behavior of gases described by Boyle’s…

A: The kinetic molecular theory has the following postulates:

Q: what are the anomalous behaviour of oxygen?

A: Small size, high electronegativity and absence of d-orbitals are the reason for the anomalous…