Using the linear regression form of the van't hoff equation
I am trying to work through calculations to obtain the delta H and delta S in the example 3 - 14 on page 71 of Martin's Physical Pharmacy. A set of data (log Ka v. 1/T x 10^3) is plotted and the linear form of the van't hoff equation should be used to calculate delta H and delta S. The equation in this form is: ln K = -(delta ...continues
I need to find a simple way to convert gases expressed as mol % to volume percent. Pressure and Temperature are constant. For example, what volume percent would water vapour be if given as 1-52 mol % ?
Calculate the freezing point of 250 ml of water containing 7.5 g of sucrose.
Calculate the freezing point of 250 ml of water containing 7.5 g of sucrose. For water, Kf=1.86 K kg/mol. The molecular weight of sucrose is 342.3 g/mol.
Consider a container of volume 5.0 L that is divided into two compartments of equal size.
Consider a container of volume 5.0 L that is divided into two compartments of equal size. In the left compartment there is nitrogen gas at 1.0 atm and 25 degrees C; in the right compartment there is hydrogen at the same Temperature and Pressure. Calculate the entropy and Gibbs energy of mixing when the partition is removed. A ...continues
Find delta Smix, delta Gmix, delta Hmix, and delta Vmix if 125 g of benzene and 25 g of naphthalene are mixed at 60 degrees C. Assume the solution to be ideal. The molecular weights of benzene and naphthalene are 78.12 g/mol and 128.19 g/mol respectively.
For the following mechanism: N205------>k1<--------k2 N02 + N03 N0 + N03 ------>k3 2N02 Using the steady-state assumption, find the expression for dPN02/dt Note. The k1 is on top of the right pointing arow and k2 is below the left pointing arrow and the arrows are like they are in equilibriu ...continues
Reaction rate constant and kinetics
The reaction CH3CH2N02 + 0H^- -----> CH3CHN02^- + H20 has the rate r=k[CH3CH2N02][0H^-] it takes 0.5 min for one % of CH3CH2N02 to react at 25 degrees C, in the case of a solution 0.002 M in CH3CH2N02 and 0.3 M in Na0H. a) Calculate k. b) Calculate also how long it would take f ...continues
In the study of a first-order reaction, A--->B, it is found that A/Ao=0.125 after one hour. The system initially consisted of 0.20 mole of a gaseous A at 25 degrees C and 1 atm. Calculate the initial rate of reaction in moles of A reacting per minute.
From the figure provided show u VS T, S vs T, and V vs T for 1st order transition (discontinuous)
The two figures show Cp VS T for various transitions. I need to know what the graph would look like for: 1. u (internal energy) vs T 2. S (Entropy) vs T 3. and V vs T for a first order (discontinuous) transition. Extra Info: FOr the equilibrium phase transitions at constant T and P (temperature and pressure) t ...continues
Derive an expression for the compression factor of a gas that obeys the equation of state P(V - nb) = nRT where b and R are constants. If the pressure and temperature are such that Vm = 10b, what is the numerical value of the compression factor? Extra Info. As a measure of the deviation from ideality of the behavi ...continues
