Question

A dilute gas is stored in one side of a chamber where the other side is...

A dilute gas is stored in one side of a chamber where the other side is vacuum. The two sides are separated by a partition and the chamber is insulated perfectly from outside. Then the partition is removed, the gas in the one side of the chamber is going to fill the entire chamber. Calculate the work done by the gas and estimate the change in the internal energy of the gas in the process.
Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

This process is called Free expansion. In this process, Volume of gas changes but still work transfer is considered zero. This is because the work is not done against any resistance. vacuum does not offer resistance to the expansion of gas. so work is zero. As the chamber is insulated, there is no heat interaction as well.

From first law of thermodynamics

dQ=dU+dW for any process.

In this process, dQ and dW both are zero so dU ( change in internal energy) will also be equal to zero. This process is an irreversible process.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
(a) During an isothermal process, 5.00 J of heat is removed from an ideal gas. Determine...
(a) During an isothermal process, 5.00 J of heat is removed from an ideal gas. Determine the work done in the process and the internal energy change. (b) If the 300 J of work is done in compressing a gas adiabatically, determine the change in internal energy of the gas and amount of heat removed. (c) In an isochoric process, the internal energy of a system decreases by 50.0 J. Determine the work done in the process and the amount...
1) A quantity of n moles of oxygen gas (CV = 5R/2 and Cp = 7R/2)...
1) A quantity of n moles of oxygen gas (CV = 5R/2 and Cp = 7R/2) is at absolute temperature T. You increase the absolute temperature to 2T. Find the change in internal energy of the gas, the heat flow into the gas, and the work done by the gas if the process you used to increase the temperature is isochoric. Express your answers in terms of the variables n, R, and T separated by commas. 2) Find the change...
An ideal gas containing 10^23 molecules is initially confined to one side of a room, then...
An ideal gas containing 10^23 molecules is initially confined to one side of a room, then expands to fill the whole room. Its internal energy does not change. a. Calculate the multiplicity of the system before it expands. b. Calculate the multiplicity of the system after it expands. c. Calculate its entropy change. Use Stirling’s approximation to calculate multiplicity.
Construct a Carnot PV-cycle for an ideal gas with high temperature Thigh and low temperature Tlow....
Construct a Carnot PV-cycle for an ideal gas with high temperature Thigh and low temperature Tlow. Remember that the top and bottom legs are isotherms (constant temperature), so PV=NkT for the start and endpoints of those legs. The side legs must satisfy the condition that Delta(Q)=0. For your cycle, estimate 1) the work done for each step (it will be helpful to have a piece of graph paper), 2) the change in internal (heat) energy, 3) the total sum of...
The insulated vessel shown below has two compartments separated by a membrane. On one side is...
The insulated vessel shown below has two compartments separated by a membrane. On one side is 1 kg of steam at 400°C and 200 bar. The other side is evacuated. The membrane ruptures, filling the entire volume. The final pressure is 100 bar. Determine the entropy change for this process. (In each state of your calculations, state your reasoning clearly.)
A gas is confined to a sub-volume V1 in an insulated rigid container. The container has...
A gas is confined to a sub-volume V1 in an insulated rigid container. The container has an adjoining sub-volume V2, initially evacuated(vacuumed), which can be connected to V1 by opening a valve. V1=V2. Suppose the valve is opened and the gas flows out of V2, filling the entire volume V1+V2. Assume the specific gas constant is R.                 a)Calculate the work done by the gas in this expansion.                 b) Calculate the change in internal energy of the gas.                ...
The drawing refers to 4.62 mol of a monatomic ideal gas and shows a process that...
The drawing refers to 4.62 mol of a monatomic ideal gas and shows a process that has four steps, two isobaric (A to B, C to D) and two isochoric (B to C, D to A). (a) What is the work done from A to B? (b) What is the heat added or removed from B to C? (c) What is the change in internal energy from C to D? (d) What is the work done from D to A?
Oxygen gas is contained in a piston cylinder assembly at an initial pressure of 1000 kPa...
Oxygen gas is contained in a piston cylinder assembly at an initial pressure of 1000 kPa and expands from 0.2 m3 to 1.0 m3 by a process where PV = constant. The gas has an internal energy change of -200 kJ. Calculate the work (kJ) and the heat transfer (kJ) done during the process.
13)One mole of neon gas is heated from 358 K to 426 K at constant pressure....
13)One mole of neon gas is heated from 358 K to 426 K at constant pressure. Note that neon has a molar specific heat of c = 20.79 J/mol · K for a constant–pressure process. (a) Calculate the energy Q transferred to the gas. kJ (b) Calculate the change in the internal energy of the gas. kJ (c) Calculate the work done on the gas. kJ
A cylinder of monatomic ideal gas is sealed in a cylinder by a piston. Initially, the...
A cylinder of monatomic ideal gas is sealed in a cylinder by a piston. Initially, the gas occupies a volume of 3.00 L and the pressure is initially 105 kPa. The cylinder is placed in an oven that maintains the temperature at a constant value. 65.0 J of work is then done on the piston, compressing the gas (in other words, the gas does −65.0 J of work). The work is done very slowly so that the gas maintains a...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT