Question

In: Chemistry

Under constant temperature, a pressure of 12 torr and a volume of 8 L, what is...

Under constant temperature, a pressure of 12 torr and a volume of 8 L, what is the new pressure if the volume decreased to 6 L?

Keq = [products] / [reactants]. Knowing any two; Keq, product or reactant concentrations, will enable determination of the other?

Expert Solution

Ans 1:

using the ideal gas law , pV = nRT

pressure is related to Volume by the expression ,

p1V1 = p2V2

where p is pressure in atm and V is volume in L

12 torr = 0.0157895 atm

so putting all the values in the formula

0.0157895 x 8 = p2 x 6

p2 = 0.0210527 atm

or 16 torr

Ans 2 :

Yes when the values of any 2 determinants are known , the value of third unknown can be easily calculated .

For eg if concentrations of reactant and products are known , they can give the value of equillibrium constant .

K = [P] / [R]

Likewise the concentration of product can be determined by multiplying reactant concentration with K

[P] = K [R]

queen_honey_blossom answered 2 years ago

2. What is the final volume of argon gas if 2.50 L at 705 torr is compressed to a pressure of 1550 torr? Assuming the temperature remains constant:

1. A sample of air at 0.750 atm is expanded from 250.0 mL to 650.o mL. If the temperature remains constant, what is the final pressure in atm: 2. What is the final volume of argon gas if 2.50 L at 705 torr is compressed to a pressure of 1550 torr? Assuming the temperature remains constant: Charles Law; Convert OC to Kelvin 3. Calculate the final Celsius temperature of hydrogen chloride gas if o.500 L at 35°C is heated until the volume reaches...

What does Boyle's law state about pressure and volume at a constant temperature and a constant...

What does Boyle's law state about pressure and volume at a constant temperature and a constant pressure? Pressure and volume will both increase together or both decrease together. Pressure and volume will both increase as temperature and pressure increase. Pressure increases when volume decreases. Pressure and volume will both decrease as temperature and pressure decrease.

Determine the adiabatic combustion temperature at constant pressure and at constant volume for two of the...

Determine the adiabatic combustion temperature at constant pressure and at constant volume for two of the fuels of personal choice. Graphically show that this corresponds to the product temperature where the heat of reaction is zero.

Assume solution A-B and their mean molar volume Vm, under constant temperature T and pressure P,...

Assume solution A-B and their mean molar volume Vm, under constant temperature T and pressure P, is given by: Vm = 100xA + 80xB + 2.5xAxB Evaluate relative integral volume of mixing ∆V M with respect to composition and draw schematic sketch with respect to xA.

Question #1.) A fixed volume of gas at constant temperature has a volume of 45.6 L...

Question #1.) A fixed volume of gas at constant temperature has a volume of 45.6 L at 1.24 atm. Use Boyle's Law to calculate: a. the volume of the gas when compressed to 3.53 atm. b. the pressure of the gas when it is compressed to 12.55 L. Question #2.) An aerosol can with a volume od 445 mL contains 0.355 grams of propane (C3H8) as a propellant. What is the pressure inside the can at 27 degrees celsius? Question...

A gas is allowed to expand at constant temperature from a volume of 2.00 L to...

A gas is allowed to expand at constant temperature from a volume of 2.00 L to 11.20 L against an external pressure of 1.500 atm. If the gas loses 256 J of heat to the surroundings, what are the values of q, w, and ΔU? Pay careful attention to units. Question 8 options: +256 J, -1398 J, -1142 J -256 J, -419 J, -547 J -256 J, +838 J, +1094 J +256 J, +1398 J, +1654 J -256 J, -1398...

Pressure , Volume & Temperature

A 0.905 mol sample of Ar gas is confined in a 22.6 liter container at 31.6 °C. If the volume of the gas sample is increased to 45.2 L holding the temperature constant, the average force per molecule-wall collision will- 1) increase. 2) not enough information to answer the question. 3) remain the same. 4) decrease.

A. On a day with a temperature of 15 ∘C and a pressure of 785.0 torr...

A. On a day with a temperature of 15 ∘C and a pressure of 785.0 torr , how many grams of peroxyacyl nitrates are found in the air above Los Angeles (1500. km3) if the concentration is 30.0 ppb by moles? The molar mass of the major peroxyacyl nitrate, peroxyacetyl nitrate, is 118.03 g/mol. Express your answer to three significant figures and include the appropriate units. B. Peroxyacyl nitrates contain two relatively weak bonds that can be broken by low-energy...

On a day with a temperature of 15 ∘C and a pressure of 792.0 torr ,...

On a day with a temperature of 15 ∘C and a pressure of 792.0 torr , how many grams of peroxyacyl nitrates are found in the air above Los Angeles (1500. km3) if the concentration is 30.0 ppb by moles? The molar mass of the major peroxyacyl nitrate, peroxyacetyl nitrate, is 118.03 g/mol.

The vapor pressure of water at blood temperature is 47 Torr.

The vapor pressure of water at blood temperature is 47 Torr. What is the partial pressure of dry air in our lungs when the total pressure is 760 Torr? (1Torr = 133.3 Pa )