A number of reactions that take place on the surfaces of catalysts are zeroth order in the reactant. One example is the decomposition of ammonia on hot tungsten. In an experiment, the partial pressure of ammonia decreased from 21 kPa to 10 kPa in 770 s. (i) What is the rate constant for the zeroth-order reaction? (ii) How long will it take for all the ammonia to be consumed?

Q: A tank of compressed air of volume 1.00 m3 is pressurized to 24.6 atm at T = 273 K. A valve is…

A: V = 1.00m3 Pi = 24.6atm T = 273K Pf = 12.9atm Boltzmann constant (R) = 1.38*10-23J/K

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A:

Q: Starting from the initial system, a combination reaction occurs at Starting from the initial system,…

A: Consider the order given with numbers assigned to each system as Initial system, as stated in the…

Q: The total lung capacity of a typical adult is 4.6 L. Approximately 20% of the air is oxygen. Part A…

A: The expression for ideal gas law,

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A:

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A: The problem is asking us to find the equation that converts temperature in the E scale (TE) to the…

Q: Ex. 52 : The pressure of a gas in a 0.1 litre container is 100 kPa and the KE per molecule is 6 x 10…

A: To Find- V=0.1 litre=10-4 m3p=100 kPa=1×105 PaKE per molecule=6×10-21 JNA=6.022×1023 mol-1

Q: A quantity of gas in a piston cylinder has a volume of 0.401 m^3 and a pressure of 200 Pa. The…

A: According to ideal gas law in the ratio, P2P1=V1V2T2T1 Here,P1,P2  are the initial and final…

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A:

Q: 1) The figure (not to scale) shows a pV diagram for 3.2 g of neon gas (Ne) that undergoes the…

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Q: vessel contains one mole of O2 gas at a temperature T. The pressure of the gas is P. An identical…

A: C

Q: tank of compressed air of volume 1.00 m3 is pressurized to 24.6 atm at T = 273 K. A valve is opened,…

A:

Q: The most dangerous particles in polluted air are those with diameters less than 2.5 μm because they…

A: Stoke's velocity is given by:

Q: A quantity of gas in a piston cylinder has a volume of 0.371 m^3 And a pressure of 200 Pa. the…

A: Given:volume,V1=0.371m3pressure,P1= 200 PaVolume,V1=0.177m3Find final pressure of the gas.Now,In…

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A:

Q: You are evaluating two biodegradable polymers, Polymer A and Polymer B, for material to release…

A: Hydrolysis is the main degradation mechanism of the biodegradable polymers.

Q: A tank contains carbon dioxide at 600 psia and 100°F. A leak occurs in the tank and is detected…

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Q: You are using an apparatus that produces heat by condensing water steam at 100°C and then cooling…

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Q: 0.161 mol  of argon gas is admitted to an evacuated 80.3 cm^3 container at 20.3 degrees C. The gas…

A: expansion is isothermal so PV=CONSTANT P is pressure V is volume Formula P1V1=P2V21 denotes initial…

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Q: A quantity of gas in a piston cylinder has a volume of 0.412 m^3 and a pressure of 200 Pa. The…

A:

Q: The figure (not to scale) shows a pV diagram for 10 dg of helium gas (He) that undergoes the process…

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Q: The radius of an artery decreases from 1.2 to 0.50 cm due to atherosclerosis. If the average blood…

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Q: In an electrochemical cell, a metal anode lost 0.287 g while a total volume of 0.04651 L of hydrogen…

A: The pressure of Hydrogen will be = 765.9 - 23.88 = 742.02 mm / hg = 0.976 atm Nuclear Mass of…

Q: As the gas trapped in a cylinder with a movable piston cools, 1.34 kJ of work is done by the…

A: The work done on the gas is given by dW = P × dV   Where dW = Work done, P = Pressure of the gas, dV…

Q: A sample of pure copper has a mass of 16.9 g. Calculate the number of moles in the sample and copper…

A: ....

Q: Which of the following shows the correct relationship among these three parameters: the total mass m…

A: In this problem, it is asking about the relation in mass, molar mass and number of moles.

Q: There is a piston that contains a 30 liter water sample at 30 ° C and exposed to 1 atm of pressure.…

A: Given T1=(273+30)K=303KV1=30LP1=1atm As PV=nRT At constant pressure V/T=constant.

Q: Working with a lab partner, a gas sample is prepared with a pressure of 1.25 bar at T = 350 K. You…

A: Solution:-Given thatInitial condition;P1=1.25 bar, T1=350 KFinal condition;P2=0.75 bar, T2=210 K∆H…

Q: A scientist observes the changes in the gas pressure of one mole of a gas sample in a sealed chamber…

A: No. Of moles of gas = 1 mole  Volume of sealed gas chamber is fixed .

Q: You toss two six-sided dice. What is the total number of ways in which you can obtain the following?…

A: If we toss a six sided dice then we can obtain an out comes any number from 1 to 6 a)  We can obtain…

Q: A quantity of gas in a piston cylinder has a volume of 0.518m ^ 3 and pressure of 200 Pa. The piston…

A: In isothermal process temperature of system is constant hence, internal energy of system is…

Q: A student is asked to sketch a pV diagram for a gas that goes through a cycle consisting of (a) an…

A: Given : process involved :  a -  isobaric expansion  b - constant-volume reduction in temperature c…

Q: There are two important isotopes of uranium, 235 U and 238 U ; these isotopes are nearly identical…

A: The rms speed of 235U can be obtained as

Q: In a period of 0.9 s, 5.0 1023 nitrogen molecules strike a wall of area 7.2 cm2. If the molecules…

A: time = 0.9 seconds number of molecules = 5 * 1023Mass of total molecules = 5 * 1023 * 4.68 * 10-26…

Q: In a period of 0.9 s, 5.0  1023 nitrogen molecules strike a wall of area 7.2 cm2. If the molecules…

A: Given: The time of a period is t=0.9 s. The number of nitrogen molecule is N=5X1023. The area of…

Q: For most automobiles, the number of miles per gallon decreases as highway speed increases. Fuel…

A: Kinetic energy can be expressed as

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Q: Mercury is the only metal that exists as a liquid (d=13.56 g/cm3) at room temperature. Find the…

A: The density of the mercury is as follows: ρ=13.56 g/cm3 The mass of the mercury is as follows:…

Q: The enthalpy of a system is given by the equation H=U+PV where U is the internal energy, P=pressure,…

A: 1. The change in heat with respect to time is the heat absorbed by the system is, Q=55 J/s 2. The…

Q: The temperature at state A is 20ºC, that is 293 K. What is the heat (Q) for process D to B, in MJ…

A: Given:- The temperature at state A is .Find:- The heat (Q) in the process D to B?

Q: An ideal gas initially at 325 K undergoes an isobaric expansion at 2.50 kPa. The volume increases…

A: