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Chemical Engineering
If F(s)=s^{2}+2/s(2s^{2}-7s+5); then lim t→∞f(t)
Chemical Engineering
If f(t)=cos 2t H(t-π), then L{∫0^{t}f(τ)dτ}
Chemical Engineering
The differential equation x^{2}yux+f(u)uy=xy^{2}u is
Chemical Engineering
Sulphur dioxide is to be scrubbed from an air stream in a small packed tower by contacting it with an organic amine. The feed gas 3% SO2, by volume, and 95% of it is to be absorbed. The total gas rate is 150 m^{3}/h. at 20^{
Chemical Engineering
Find unit normal vector to the surface xy^{2}+2yz=8 at the point (3,-2,1)
Chemical Engineering
Find the Laplace Transform of the following functions:
i)ft=e-tsinh 3t
ii)ft=t9e5t
Chemical Engineering
Discuss the similarities between the Rockwell and Brinell tests principles for the determination of hardness of the material.
Chemical Engineering
Blue water gas is obtained by passing steam over red hot carbon enriched
coal (coke). The gas is called "blue" water gas because of its blue flame, a characteristic of the combustion CO. A typical composition shows 4.7% CO2, 41% CO, 49% H2, 0.8% CH4, and 4.5% N2. If the blue water gas at 30 deg C, 700 torrs and 93% RH is burned in wet air, 38% in excess, supplied at the same condition as BWG with 85% RH, calculte
A.) Orsat analysis of the stack gas if the molar ratio of CO2 to CO is 1:8 and H2 to CO is 1:4
B.) GCV of BWG
C.) % Calorific value lost due to sensible heat
D.) Thermal Efficiency
coal (coke). The gas is called "blue" water gas because of its blue flame, a characteristic of the combustion CO. A typical composition shows 4.7% CO2, 41% CO, 49% H2, 0.8% CH4, and 4.5% N2. If the blue water gas at 30 deg C, 700 torrs and 93% RH is burned in wet air, 38% in excess, supplied at the same condition as BWG with 85% RH, calculte
A.) Orsat analysis of the stack gas if the molar ratio of CO2 to CO is 1:8 and H2 to CO is 1:4
B.) GCV of BWG
C.) % Calorific value lost due to sensible heat
D.) Thermal Efficiency
Chemical Engineering
If the reaction in a process is incomplete, explain if it affects the standard heat of reaction.
Chemical Engineering
A waste gas and theoretical air are entering a furnace at 25°C to produce flue gas at 150°C. If pure O2 rather than air is fed to the furnace, would the flue gas temperature be higher, lower or the same? Provide reasons for the answer.
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#340153 on Dec 2023
#340153 on Dec 2023