Ar-gas - FAQS.TIPS

More Armin Rajabi's questions See All

Is it possible that nano-ceramics synthesised using 3D printing while lays are still fabricated?

3D printing is a process of making three dimensional solid objects from a digital file which object is created by laying down successive layers of material until the object is created

07 August 2019 7,168 1 View

Does anyone know, how can synthesis Cellulose Acetate Butyrate (CAB)?

CAB is similar for cellulose diacetate except that it is tougher, more durable and has better dimensional stability

09 October 2018 2,191 0 View

Does anyone know, why the intensity of FTIR peaks changed while the functional groups are same?

Fourier Transform-Infrared Spectroscopy (FTIR) is an analytical technique used to identify organic (and in some cases inorganic) materials. In this study, nano silver coated on the fabric at...

07 August 2018 6,253 3 View

What are the effective parameters on the UV absorbance ?

UV spectroscopy is an important tool in analytical chemistry .When UV radiations are absorbed, this results to the excitation of the electrons from the ground state towards a higher energy state....

07 August 2018 8,286 7 View

What are the reasons for pecks changing in FTIR test after coating on the fabric?

The FTIR results revealed a increase in the peaks intensity for Ago-coated polyethylene terephthalate (PET) in the 2000–4000 cm-1

07 August 2018 3,693 0 View

How can I calculate weight percentage of production via hydrothermal method?

Two different salt were solved in the distilled water in room temperature. The final reaction was done by hydrothermal method. So, I want to calculate the weight percentage the production. Can...

07 August 2017 7,985 1 View

Does anyone know how I can prepare powder samples to measure contact angle?

I want to measure the contact angle of the nano metal oxide such as, Zn, Ag and Cu.

06 July 2017 434 7 View

Is the mechanical alloying method repeatable?

Mechanical alloying (MA) is a relatively novel method that has been successfully applied for materials, such as intermetallic compounds and transition metal carbides, which are difficult to...

06 July 2017 1,200 10 View

Does anyone know that Burgers vector of as-milled powders varies with increasing the microstain due to the ball–powder collision?

The Burgers vector associated with a dislocation is a measure of the lattice distortion caused by the presence of the line defect. During mechanical alloying, the powders are subjected to...

02 March 2017 8,263 0 View

Does anyone know how we can measure density for a compound with different stoichiometry?

Density is defined as mass per unit volume. The density of the majority of the material is available in the literature. Actually I would like to find the density of TiC0.7N0.3 please let me know.

09 October 2015 3,556 2 View

Geotechnical Engineering (Proceedings of the ICE) time review?

Hello everyone, I recently submitted an article to Geotechnical Engineering (Proceedings of the ICE), and the current status has been listed as "EiC Pre-assessment: Ready" for the past 20 days. I...

10 August 2024 6,493 1 View

GC-MS retention index prediticon?

Hello experts, Does anyone know any free software about retention index prediction ?

08 August 2024 7,403 2 View

AUX gas reading problem on QE with full MS and PRM method in one run?

Dear QE-users, In the method where full MS positive mode and PRM mode are used, we always get an incorrect auxiliary gas reading (41 instead of 25). This only happens in this method; other...

06 August 2024 4,953 0 View

Absorption coefficient of methane?

Hello, Can anyone provide me with the absorption coefficient of methane gas at 7.7 um? Any reference?

06 August 2024 980 5 View

How can I inoculate a lyophilized anaerobic bacteria into the culture medium without an anaerobic chamber?

There are anaerobic gas pak jars and environment providers in the laboratory that provide anaerobic environmental conditions for the growth of anaerobic bacteria. However, there is no anaerobic...

05 August 2024 4,945 3 View

Is there any Indian Company or Startups, from any universiy or IITS, which manufacture Gas Chromatography instrument , i want to make a custOmized G?

or we can collaborate

01 August 2024 6,705 2 View

Some new emerging problems on application of RL for scheduling in IoT networks?

I have seen plenty of existing works on applied Reinforcement Learning (RL) policies for optimized scheduling in IoT networks including Q-learning, DQNs, and the newer ones including PPO for...

01 August 2024 8,754 2 View

Gas chromatography RT detection?

I am working on algal extract to which gas chromatography (Not GC-MS) spectrum I want to discover. My question is can we identify specific compounds using retention time if I compared the RT with...

29 July 2024 8,034 4 View

What should a Mechanical Engineering PhD scholar focus on during their PhD to enhance their chances of securing a postdoctoral position?

29 July 2024 7,714 4 View

May I know the exact Quartile of the journal- Advanced Engineering Materials (Wiley) for material science category?

In some data sources it has been grouped in Q1 and some shows it is Q2.

29 July 2024 4,227 2 View

Anil Bag

From Ar-gas chart one can get the density information. Mass flow rate= Vol. flow rate multiplied by density.

Armin Rajabi

Dear Dr. Anil

due to the Vol. flow is not available. I tried to find another way . Therefor, I am so please if you check the solution, as follow.

pV = nRT

n = mass / mw

substitute...

PV = (mass / mw) RT

rearrange...

mass / V = mw x P / RT

since density (ρ) = mass / V...

ρ = mw x P / RT

solve...

ρ = (39.9 g/mole) x (1 atm) / [( 0.0821 L.atm /mol.K) x (298 K)] = 1.63 g/L

w=1.63 g/L x 340 L (consumed gas)=0.5kg

Thank You.