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The enthalpy of formation of NH3(g) as per the following reaction is -46.11 kj/ mol at 298 K.

N2(g)+3H2(g)=2NH3(g)

Calculate the value of enthalpy of formation of NH3(g) at 100°C. The Cp0 (Jk-1mol-1) values are given as: N2(g)=29.12;H2(g)=28.82; NH3(g)=35.06• Assume the given heat capacity value to be temperature independent in the range.




For the equilibrium

2SO2(g)+O2(g)=2SO3(g) Kc=245(at100k)

The equilibrium concentrations are [SO2]=0.204M,[O2]=0.0264M and [SO3]=0.368M. Suppose that the concentration of SO2 is suddenly halved calculate Qc and use it to show that the forward reaction takes place to reach a new equilibrium.


A helium filled balloon at sea level has a volume of 2.1 L at 0.998 atm and 36℃.  If it is released and rises to an elevation at which the pressure is 0.900 atm and the temperature is 28℃, what will be the new volume of the balloon?

An unopened, cold 2.00 L bottle of soda contains 46.0 mL of gas confined at a pressure of 1.30 atm at the temperature of 5.0℃.  If the bottle is dropped into a lake and sinks to a depth at which the pressure is 1.52 atm and the temperature is 2.09℃, what will be the volume of gas in the bottle?

A sample of air in a syringe exerts a pressure on 1.02 atm at a temperature of 22.0℃  The syringe is placed in a boiling water bath at 100.0℃.  The pressure of the air is increased to 1.23 atm by pushing the plunger in, which reduced the volume to 0.224 mL  What was the original volume of the air?

I NEED THESE BY 10PM PACIFIC TIME


The total pressure is 1.20 atm.  If the mole fraction of nitrogen is 0.856, what is the partial pressure of nitrogen?

I NEED THIS BY 10PM PACIFIC TIME


How many moles of co2 gas are produced starting with 100.0g of propane


The pure rotational spectrum of 1H131I consists of a series of lines separated by 13.10 cm−1

Calculate


(a) the moment of interia, and


(b) the internuclear distance.



what volumes of 3.25 M naoh and 4.50 M h3po4 solutions would be required to form 1.00 mol of na3po4


calculate delta x and delta px values for a particle moving in one-dimensional box of length a



To begin, drag the Na (sodium) and Cl (chlorine) atoms into the simulation area. Turn on Show valence electrons. A valence electron is found in the outermost energy level of the atom.


When 12g of Graphite was burned in Oxygen at 25 C, It create a mixture of CO(g) and CO2 (g) the amount of heat released was 323kJ. What percentage of Graphite mass became CO(g)? the standard generation entries of CO(g) and CO2(g) is -110kJmol^-1 & -394kJmol^-1