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Plot a graph of Wavelength against scale readings.
Wavelength - scale readings
396.4 - 11.1
402.6 - 10.1
412.0 - 9.5
414.4 - 9.3
438.8 - 7.9
447.1 - 7.5
471.3 - 6.5
492.2 - 5.8
501.6 - 5.6
504.8 - 5.5
587.5 - 3.7
667.8 - 2.5
706.5 - 2.1.
What is simple harmonic motion. Write down the expression for the velocity and acceleration of such motion at the different positions along its path
Hydrogen spectrum
Wavelength(nm) - scale readings
400 - 9.7
500 - 8.3
600 - 6.0
700 - 2.6.
1. Plot a graph of scale readings against Wavelength
2. What are the Wavelength from the calibration curve for each Wavelengths.
3. What are the amount of energy associated with each of the four Wavelengths
The following readings were obtained in a cooling experiment

Temp( degree). - Time( min)
36.0 - 0
35.2 - 1
34.2 - 2
33.1 - 3
33.5 - 4
32.0 - 5
31.7 - 6
31.5 - 7
31.3 - 8
31.1 - 9
31.0 - 10
Plot a graph of Temp. Against time. From the graph determine the time taken for temperature to fall from 34.0degree to 32.2 degree. Measure the rate of fall of temperature at points 34.0 degree to 31.2 degree
A 251.0 g/hr stream of liquid methyl alcohol, also called methanol, (CH3OH) at 9.00 atm and 28.0°C was held at constant pressure, vaporized and brought to 585.0°C. At what rate must heat be supplied to this system? Assume that methyl alcohol vapor behaves ideally for the temperature range and pressure given.
Calculate the heat that must be removed in cooling 1kgmol of O2 from 480K to 300K using Cp data given below
Cpo2 = 26.01+ 11.76 x 10^ -3 T - 2.35 X 10^-6T2
Oxygen, at 200 bar is to be stored in a steel vessel at 20 OC. The capacity of the vessel is 0.04 m3.
Calculate the mass of oxygen that can be stored in the vessel. The vessel is protected against excessive pressure by a fusible plug which will melt if the temperature rises too high.
At what temperature must the plug melt to limit the pressure in the vessel to 240 bar?
Glucose is converted to ethanol in an anaerobic reaction with ammonia as the nitrogen source.0.45 g of ethanol are produced per g of glucose consumed. The steady state production rate of ethanol averages 0.4 kg hr -1.

The general equation for the reaction is
C6H12O6 + bNH3 cCH1.75O0.58N0.18 + dCO2 + e H2O + fC2H6O

Balance the equation for the reaction and determine how many moles of glucose and ammonia are consumed, and moles of ethanol are produced, in a one hour period.
Air (ideal and perfect gas) with mass of 8.000kg is heated at constant pressure of 9.000mbar (gage) from -20.810C to 179.148C. Determine the heat required in MJ, and the change of the system volume (ΔV= V2-V1).
Evaluate the volume occupied by 7.000 kg of air at a gage ressure of 623 kPa and a temperature of 686 C. Calculate air density undet the same conditions.
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