203 Answered Questions for the topic thermodynamics

Thermodynamics Chemistry Heat Transfer

12/07/21

Why in industries liquid CO2 is stored around the temperature -25°C to -15°C?
By the PV diagram of CO2, the liquid CO2 can be present from -56.4°C to 31.1°C and 5.1 atm to 73.8atm pressure.Why do almost all industries store the liquid CO2 around the temperature -25°C to... more
Follows • 1
Expert Answers •1

11/24/21

Specific heat capacity of water

I’m doing an experiment in physics about the heat capacity of water and I have questions that I don’t understand- A little info->Task/Mission- Determine the specific heat capacity of the water. ... more
Follows • 1
Expert Answers •1
Thermodynamics Chemistry Thermochemisty

11/15/21

Thermochemistry
38.5 g of ammonium nitrate was added to 100.0 mL of water. The initial temperature of the water was 25.0 °C. After dissolution, the water temperature was measured at 5.80 °C. What is the enthalpy... more
Follows • 2
Expert Answers •1
Thermodynamics Chemistry

11/10/21

Question about Chemistry
What is the change in internal energy of a system if the surroundings absorb 145 J of heatfrom the system while doing 98 J of work on the system?
Follows • 2
Expert Answers •1
Thermodynamics Science Chemistry

11/03/21

Thermochemistry. Answer, step by step please. (show work)
1N2 (g) + 3H2 (g) = 2NH3 (g) ∆H = -91.2 kJ a. Is this exothermic or endothermic? b. Rewrite the equation with the energy as either a reactant or a product. c. What quantity of heat is released... more
Follows • 2
Expert Answers •1
Thermodynamics Science Chemistry

11/02/21

Thermochemistry. Answer, step by step please. (show work)
1) 2C (s) + 2H2 (g)  1C2H4 (g) ∆H = 52.3 kJ a. Is this exothermic or endothermic?b. Rewrite the equation with the energy as either a reactant or a product.c. What volume of Ethene gas can be... more
Follows • 2
Expert Answers •1
Thermodynamics Biology Chemistry Physics

10/29/21

Honors High School Chemistry
What is the mass of CO2 (carbon dioxide) and H2O (water) formed from the reaction of 1 mole each of n-pentane, n-hexane, n-heptane, and n-octane with an excess of O2 (oxygen gas)? Assume 100%... more
Follows • 2
Expert Answers •1
Thermodynamics

10/28/21

heat engines thermodynamics
What is the entropy change of a gas in J/K (to 2 decimal points) when one mole of a perfect gas reversibly expands from 0.36 m3 to 2.42 m3?
Follows • 0
Expert Answers •1

10/20/21

Thermo Question Steady-Flow System
An air-conditioning system involves the mixing of cold air and warm outdoor air before the mixture is routed to the conditioned room in steady operation. Cold air enters the mixing chamber at 7°C... more
Follows • 1
Expert Answers •1
Thermodynamics Physics

09/19/21

Determine how high the combustion of 1.000 mol of CO could lift a 1.00 kg mass near the surface of the earth
Carbon monoxide is used as the fuel for a Carnot engine with a high temperature of 450 o C and a cool temperature of 100 o C. Determine how high the combustion of 1.000 mol of CO could lift a 1.00... more
Follows • 1
Expert Answers •1
Thermodynamics Math Science Chemistry

09/15/21

Thermodynamics Basic principles, concept and definitions
Using local g = 9.807 m/s^2, and that its variation is -0.003 ft/s^2 per 1000 ft ascent. Find the height in meters where the weight of a given man is reduced by 0.3%
Follows • 1
Expert Answers •1
Thermodynamics Math Science Chemistry

09/15/21

Thermodynamics Basic principles, concept and definitions
A garden hose attached with a nozzle is used to fill a 10 gallon bucket. The inner dia of the hose is 2 cm and it reduces to 0.8 cm at the nozzle exit. If it takes 50 seconds to fill the water... more
Follows • 1
Expert Answers •1
Thermodynamics Chemistry Organic Chemistry

08/29/21

What does the change of enthalpy per mole of oxygen in a combustion reaction say about the amount of energy that can be released?
For example, if -445.7 kJ is released per 1 mole of oxygen in the combustion of ethane, what does this say about the reaction?
Follows • 1
Expert Answers •1

07/15/21

I am very lost on how to solve this: Grade 12 chemistry
In the following reaction, the initial rate of production of N2O gas is 0.51 mol/(L*s) What is the rate of loss of NO3NO(g) ---> N2O(g) + NO2(g)
Follows • 1
Expert Answers •1

06/02/21

Chromatography and CO2 reduction

How can chromatography and CO2 reduction help combat climate change? I know that chromatography is a technique for the separation of a mixture but I don’t how it might help in combating the climate... more
Follows • 1
Expert Answers •1
Thermodynamics Chemistry Thermochemistry

05/20/21

CHEMISTRY - THERMOCHEMISTRY
A gas expands against a variable opposing pressure given by P = 10/V atm, where V is the volume of the gas at each stage of expansion. Further, in expanding from 10 to 100 liters, the gas undergoes... more
Follows • 1
Expert Answers •1
Thermodynamics Chemistry Maths Data

05/15/21

How to add absolute uncertainties PLEASE HELP!
Instrument   Type of instrument Limiting of reading Absolute Uncertainty Total absolute uncertainty for experiment Electronic Scale Digital 0.1g... more
Follows • 1
Expert Answers •1
Thermodynamics Chemistry

05/12/21

Calculating Enthalpy, Entropy, and Molar Enthalpy in a calorimeter experiment? PLEASE HELP!
When 3g of Ammonium Chloride is added to 10ml of water in a calorimeter, the temperature over a five-minute period drops from 27.1 degrees celsius to 19.8 degrees celsius. The table of the results... more
Follows • 2
Expert Answers •1
Thermodynamics Chemistry

05/11/21

Is Ammonium Chloride (NH4CL) an endothermic reaction when in water?
I was wondering if Ammonium Chloride is an endothermic reaction when mixed with water in a calorimeter and what the effect of increasing the amount of water in the calorimeter would have on the... more
Follows • 1
Expert Answers •1
Thermodynamics Chemistry

05/10/21

Calculating Enthalpy in a Calorimeter Experiment- PLEASE HELP!
When 3g of Ammonium Chloride is added to 10ml of water in a calorimeter, the temperature over a five-minute period drops from 27.1 degrees celsius to 19.8 degrees celsius. The table of the results... more
Follows • 2
Expert Answers •2
Thermodynamics Chemistry

04/28/21

Question about phase change calorimetry! Help
Hello, so we've recently conducted a calorimetry experiment wherein we had to mimic an isolated system by melting ice cubes in hot water.The questions are: Calculate the heat exchanged in the... more
Follows • 2
Expert Answers •1
Thermodynamics Chemistry

04/14/21

The following cell has a potential of 0.10 V at 25oC. What is the pH of the solution in the cathode compartment?
Ni(s) | Ni2+(aq) (1.0 M) || H+ (? M) | H2(g) (1.0 atm) | Pt(s)  
Follows • 2
Expert Answers •1

04/12/21

Thermodynamics- Combustion -Conservation of Energy
I was able to figure problem one, but I need help with problem 2. Thank you for the help!Problem #1: Ethane (C2H6) gas at mass flow rate of 1.5 kg/min is mixed with air (O2 + 3.76N2) at mass flow... more
Follows • 2
Expert Answers •1
Thermodynamics Chemistry

04/09/21

I2(g) + Cl2(g) < ==== > 2 ICl(g) An equilibrium mixture of the above contains 0.0100 atm I2(g), 0.0100 atm Cl2(g), and 0.0900 atm ICl(g) at 298 K. Calculate the Delta G at standard condition.

This was a multiple choice question. I don't know what I was doing wrong. I tried using the formula: delta G= delta G° + RT ln(Q)I got delta G° = -30440 J/mol by using the Gf table 2(-5.52)-19.4+0... more
Follows • 2
Expert Answers •1
Thermodynamics Science Chemistry Biochemistry

04/08/21

Predict the sign of ΔS for the following reactions. Then predict whether the reaction is spontaneous, non-spontaneous, or dependent on the magnitude of ΔH, ΔS and temperature.

a.) Na2CO3 (s) Na2O (s) + CO2 (g) (endothermic) b.) 2NF3 (l) N2 (g) + 3F2(g) (exothermic) c.) 2XeO3 (s) 2Xe (g) + 3O2(g) (exothermic)
Follows • 1
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.