A piston filled with a diatomic gas is heated at a rate of 200 W. At...
A piston filled with a diatomic gas is heated at a rate of 200 W. At some time it has a volume of 1.0 m3, and is doing work at a rate of 150 W. How fast is its internal energy changing, in W? Or is there not enough information to solve if so explain.
Homework Answers
Absorbing heat: Heat is going INTO the system, which means Q
(heat transfer) is positive.
Work done on system: Positive (think of external forces adding
energy to the system).
?U = Q + W
So the equatio has a direct relaio with time time is not mentioed i any of the processes
Add Answer to:
A piston filled with a diatomic gas is heated at a rate of 200
W. At...
General Physics Do parts: e-m and assume the gas is diatomic: U = (5/2)nRT (a) W...
General Physics
Do parts: e-m and assume the gas is diatomic: U = (5/2)nRT
(a) W = 415.7 J
(b) on the piston
(c) 1039.25 J
(d) Q added = 1454.95 J
------------------Not so sure about part (e) and below
(e) W = 0 J
(f) N/A
(g) -1039.25 J
(g) = -1039.25 J
A cyclic process A cylinder contains 0.50 mol of ideal gas at 27.0 °C. First, the gas is heated to 127.0 °C while the pressure is...
General Physics Do parts: i-m and assume the gas is diatomic: U = (5/2)nRT (a) W...
General Physics
Do parts: i-m and assume the gas is diatomic: U = (5/2)nRT
(a) W = 415.7 J
(b) on the piston
(c) 1039.25 J
(d) Q added = 1454.95 J
(e) W = 0 J
(f) N/A
(g) -1039.25 J
(h) = -1039.25 J
==> DO PARTS i-m
A cyclic process A cylinder contains 0.50 mol of ideal gas at 27.0 °C. First, the gas is heated to 127.0 °C while the pressure is maintained constant at 1.0...
As shown in the figure below, a gas contained within a piston-cylinder assembly, initially at a...
As shown in the figure below, a gas contained within a piston-cylinder assembly, initially at a volume of 0.1 m3, undergoes a constant-pressure expansion at p 2 bar to a final volume of V2 0.2 m3, while being slowly heated through the base. The change in internal energy of the gas is 0.25 kJ. The piston and cylinder walls are fabricated from heat-resistant material, and the piston moves smoothly in the cylinder. The local atmospheric pressure is 1 bar. Piston-...
Spring 2018 Calculating work. A gas is enclosed in a cylinder fitted with a light piston...
Spring 2018 Calculating work. A gas is enclosed in a cylinder fitted with a light piston that moves without friction. This piston always exerts a constant, atmospheric pressure on the gas so that the pressure within the gas is constant, atmospheric pressure. 4. Sketch a plot of pressure vs. volume in this situation. To do this, you can plot points. What is the pressure of the gas when the volume is 12.0 m? 18.2 m? When 1250 kJ of heat...
Problem 2. As shown in the figure, a gas contained within a piston-cylinder assembly, initially at...
Problem 2. As shown in the figure, a gas contained within a piston-cylinder assembly, initially at a volume of 0.1 m3, undergoes a constant-pressure expansion at 2 bar to a final volume of 0.12 m3, while being slowly heated through the base. The change in internal energy of the gas is 0.25 kJ. The piston and cylinder walls are fabricated fronm heat-resistant material, and the piston moves smoothly in the cylinder. The local atmospheric pressure is 1 bar. (a) For...
Thermodynamics: Work & Heat Transfer in Piston-Cylinder
for part a) got W = 4kJ, dQ = 4.25 kJfor part b) got w = 2kJ...How do you find ΔPE without mass? Do you use the conservation of energy equation?As shown in Fig. P2.56, a gas contained within a piston–cylinder assembly, initially at a volume of 0.1 m3, undergoesa constant-pressure expansion at 2 bar to a final volume of0.12 m3, while being slowly heated through the base. Thechange in internal energy of the gas is 0.25 kJ. The pistonand...
- If a gas-filled piston in a car engine does work on the surrounding engine parts,...
- If a gas-filled piston in a car engine does work on the surrounding engine parts, how does the internal energy of the gas inside the piston change? - If your hot coffee sits on your desktop and loses 50kj of energy during cooling, what is the change of enthalpy of the coffee? - Under what condition will the change in enthalpy equal the change in internal energy for a given chemical system? Thank you so much!
finding work and heat transfer given a piston-cylinder assembly
As shown in Fig. P2.56, a gas contained within a piston–cylinder assembly, initially at a volume of 0.1 m3, undergoesa constant-pressure expansion at 2 bar to a final volume of0.12 m3, while being slowly heated through the base. Thechange in internal energy of the gas is 0.25 kJ. The pistonand cylinder walls are fabricated from heat-resistant material,and the piston moves smoothly in the cylinder. The localatmospheric pressure is 1 bar.(a) For the gas as the system, evaluate work and heat...
A gas is enclosed in a cylinder fitted with a light frictionless piston and maintained at...
A gas is enclosed in a cylinder fitted with a light frictionless piston and maintained at atmospheric pressure. When 1300 kcal of heat is added to the gas, the volume is observed to increase slowly from 11.0 m3 to 19.7 m3 . a) Calculate the work done by the gas. Express your answer using two significant figures. W = J b) Calculate the change in internal energy of the gas. Express your answer using two significant figures. Δ U =...
He gas is confined to a piston and cylinder with a mechanical stop that prevents the...
He gas is confined to a piston and cylinder with a mechanical stop that prevents the cylinder from expanding. The temperature of the gas is 298 K, the volume of gas in the cylinder is 1.20 L and its pressure is 2.15 bar. The ideal gas EOS is very accurate for He under these conditions. Starting from the final state of the He gas in part (b), the gas (and apparatus) was cooled from 298 K to 263 K. The...
General Physics
Do parts: e-m and assume the gas is diatomic: U = (5/2)nRT
(a) W = 415.7 J
(b) on the piston
(c) 1039.25 J
(d) Q added = 1454.95 J
------------------Not so sure about part (e) and below
(e) W = 0 J
(f) N/A
(g) -1039.25 J
(g) = -1039.25 J
A cyclic process A cylinder contains 0.50 mol of ideal gas at 27.0 °C. First, the gas is heated to 127.0 °C while the pressure is...
General Physics
Do parts: i-m and assume the gas is diatomic: U = (5/2)nRT
(a) W = 415.7 J
(b) on the piston
(c) 1039.25 J
(d) Q added = 1454.95 J
(e) W = 0 J
(f) N/A
(g) -1039.25 J
(h) = -1039.25 J
==> DO PARTS i-m
A cyclic process A cylinder contains 0.50 mol of ideal gas at 27.0 °C. First, the gas is heated to 127.0 °C while the pressure is maintained constant at 1.0...
As shown in the figure below, a gas contained within a piston-cylinder assembly, initially at a volume of 0.1 m3, undergoes a constant-pressure expansion at p 2 bar to a final volume of V2 0.2 m3, while being slowly heated through the base. The change in internal energy of the gas is 0.25 kJ. The piston and cylinder walls are fabricated from heat-resistant material, and the piston moves smoothly in the cylinder. The local atmospheric pressure is 1 bar. Piston-...
Spring 2018 Calculating work. A gas is enclosed in a cylinder fitted with a light piston that moves without friction. This piston always exerts a constant, atmospheric pressure on the gas so that the pressure within the gas is constant, atmospheric pressure. 4. Sketch a plot of pressure vs. volume in this situation. To do this, you can plot points. What is the pressure of the gas when the volume is 12.0 m? 18.2 m? When 1250 kJ of heat...
Problem 2. As shown in the figure, a gas contained within a piston-cylinder assembly, initially at a volume of 0.1 m3, undergoes a constant-pressure expansion at 2 bar to a final volume of 0.12 m3, while being slowly heated through the base. The change in internal energy of the gas is 0.25 kJ. The piston and cylinder walls are fabricated fronm heat-resistant material, and the piston moves smoothly in the cylinder. The local atmospheric pressure is 1 bar. (a) For...
Most questions answered within 3 hours.
-
For this problem, carry at least four digits after the decimal
in your calculations. Answers may...
asked 2 hours ago -
Ask a user for three positive integer numbers. Use an input
validation loop to make sure...
asked 3 hours ago -
The most primitive form of data from data analysis perspective
is a. nominal scale b. ordinal...
asked 3 hours ago -
The number of vacancies in some hypothetical metal increases by
a factor of 5 when the...
asked 3 hours ago -
The fiduciary duty that is predicated on the concept that a
board of directors and officers...
asked 3 hours ago -
Sustainable Growth Rate Last year Umbrellas Unlimited
Corporation had an ROE of 17.3% and a dividend...
asked 3 hours ago -
Write a MATLAB program to do the following:
Receive 5 input values and store them into...
asked 3 hours ago -
Which one of the following aqueous solutions would you expect to
have the largest conductance: (a)...
asked 3 hours ago -
(Intermediate Macroeconomics)
2.The aggregate supply function be ys=2000+P, and the aggregate
demand function be yD=2400-P。Find the...
asked 3 hours ago -
I am having a really difficult time developing a strong thesis
for this question....... To what...
asked 3 hours ago -
There are n street lights in a line. In order to conserve
energy, the city decides...
asked 3 hours ago -
Cellular growth and repair require a cell to go through the cell
cycle. Like all biological...
asked 3 hours ago