Learn more about our help with Assignments: Physical Chemistry
Search & Filtering
Physical Chemistry
project on study of effect of acids and bases on tensile strength of fibre
Physical Chemistry
How many hours an MS Strip of IS 513:2008 material can sustain white rust and rest rust formation in a SALT SPRAY TEST.
If Same strip is coated with Phosphate what is the improvement in hours for the formation of white rust and red rust?
If Same strip is coated with Zinc coated what is the improvement in hours for the formation of white rust and red rust?
If Same strip is coated with Phosphate what is the improvement in hours for the formation of white rust and red rust?
If Same strip is coated with Zinc coated what is the improvement in hours for the formation of white rust and red rust?
Physical Chemistry
A mixture of air and methanol vapour is fed to a converter in which the following reactions take place:
CH3 OH + 1/2 O2 Prodeuces HCHO + H2 O,
CH3 OH Produces HCHO + H2
In addition, some methanol is completely oxidised to CO2 and water. 25% of the methanol feed leaves the converter unreacted. After condensation of the unreacted methanol, formaldehyde (HCHO) and water vapour, the gas stream contains: 17% H2, 75% N2 and 3% O2 & 5% CO2 by moles.
Calculate
a) The ratio of air to methanol in the feed
b) The yield of formaldehyde from methanol (moles HCHO/mole CH3OH feed)
CH3 OH + 1/2 O2 Prodeuces HCHO + H2 O,
CH3 OH Produces HCHO + H2
In addition, some methanol is completely oxidised to CO2 and water. 25% of the methanol feed leaves the converter unreacted. After condensation of the unreacted methanol, formaldehyde (HCHO) and water vapour, the gas stream contains: 17% H2, 75% N2 and 3% O2 & 5% CO2 by moles.
Calculate
a) The ratio of air to methanol in the feed
b) The yield of formaldehyde from methanol (moles HCHO/mole CH3OH feed)
Physical Chemistry
How many moles of C4H10O reacted, if 0.5599 moles of H2O are produced?
C4H10O+6O2 --> 4CO2+5H2O
C4H10O+6O2 --> 4CO2+5H2O
Physical Chemistry
For the balanced equation shown below, how many moles of (NH4)2Cr2O7 reacted, if 0.8353 moles of Cr2O3 are produced?
(NH4)2Cr2O7 --> N2+4H2O+Cr2O3
(NH4)2Cr2O7 --> N2+4H2O+Cr2O3
Physical Chemistry
The pH of a M/20 solution of a weak monoacidic base, if its Kb value at 25°C is 2.5 ´ 10–3, will be :
[Given log 11.18 = 1.05]
[Given log 11.18 = 1.05]
Physical Chemistry
In an equilibrium A+B<=>C+D
A and B are mixed in a vessel at temperature T.The initial concentration of A is twice of initial concentration of B.At equilibrium t=concentration of C is thrice of equilibrium concentration of B.Calculate equilibrium constant(Kc)
A and B are mixed in a vessel at temperature T.The initial concentration of A is twice of initial concentration of B.At equilibrium t=concentration of C is thrice of equilibrium concentration of B.Calculate equilibrium constant(Kc)
Physical Chemistry
A freshman studying medicine at an Ivy League College is a part of his class crew team and exercises regularly. After a particularly strenuous exercise session, he experiences severe cramps in his thighs and pain in his biceps.
Explain the chemical process that occurred in his muscle cells to cause this discomfort.
Explain the chemical reactions that have possibly taken place in his body after the exercise.
Discuss possible treatments for the freshman and how the treatment works chemically.
Explain the chemical process that occurred in his muscle cells to cause this discomfort.
Explain the chemical reactions that have possibly taken place in his body after the exercise.
Discuss possible treatments for the freshman and how the treatment works chemically.
Physical Chemistry
in an equilibrium A+B<=>C+D
A and B are mixed in a vessel at temperature T.The initial concentration of A is twice of initial concentration of B.At equilibrium t=concentration of C is thrice of equilibrium concentration of B.Calculate equilibrium constant(Kc)
A and B are mixed in a vessel at temperature T.The initial concentration of A is twice of initial concentration of B.At equilibrium t=concentration of C is thrice of equilibrium concentration of B.Calculate equilibrium constant(Kc)
Physical Chemistry
The first excited state of Ca is reached by absorption of 422.7nm light. What is the energy difference between the ground state and this excited state.
