Chemistry, 30.01.2020 09:48 jtmoney10

8. which of the following would not increase the rate of most reactions?

a. increasing the temperature
b. lowering the concentration of the reactants
c. removing an inhibitor d. adding a catalyst

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Answer from: fperez616

Lowering the concentration of the reactants would not increase the rate of most reactions.

The rate of a chemical reaction can be increased in various ways. Some of the ways to increased are as follows:Using a catalyst: A catalyst is a substance that speeds up a reaction by lowering the activation energy needed for the reaction to occur. Hence, a catalyst would increase the rate of most reactions.Increasing the temperature: Increasing the temperature of a reaction would cause the particles of the reactants to collide more and faster bringing about a faster reaction rate.Removing an inhibitor: An inhibitor is a substance that prevents a reaction from occuring, hence, removing such substance will increase the rate of reaction.

However, lowering the concentration of the reactants will make the reaction favor the left hand side, and hence, not increase the rate of a reaction.

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Answer from: Quest

i think 4.44 moles

Answer from: Quest

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.

Write 15 uses of a mercury barometer along with its characterestics

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8. which of the following would not increase the rate of most reactions?

a. increasing...

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