Question
In: Chemistry
A gas confined in a piston-cylinder arrangement occupies 0.5 liters (Vi) at 4 atm (Pi) and...
A gas confined in a piston-cylinder arrangement occupies 0.5 liters (Vi) at 4 atm (Pi) and 278 K (Ti). From this initial state the gas is allowed to expand against the surrounding atmosphere which is at a constant pressure of 1 atm (Patm) and a temperature of 278 K. At equilibrium, the gas’s final volume (Vf) is 2 liters and its final temperature (Tf) is 278 K. The initial and final states are indicated in the figure below.
a. In going from its initial to final state, did the gas do work on the atmosphere or did the atmosphere do work on the gas?
b. Calculate the work (w) and report t with the appropriate sign according to the convention presented in the text
c. If the surroundings transferred 100 joules of thermal energy to the system in going from its initial state to its final state, what is the change in internal energy (∆U) of the gas
d. Is the system open, closed, or isolated
e. What is the change in energy of the surroundings (∆Usurr)
Solutions
queen_honey_blossom answered 2 years agoRelated Solutions
The drawing shows an ideal gas confined to a cylinder by a massless piston that is...
The drawing shows an ideal gas confined to a cylinder by a
massless piston that is attached to an ideal spring. Outside the
cylinder is a vacuum. The cross-sectional area of the piston is
A = 2.50 × 10-3 m2. The initial
pressure, volume, and temperature of the gas are, respectively,
P0, V0 = 6.00 ×
10-4 m3 and T0 = 273 K,
and the spring is initially stretched by an amount
x0 = 0.090 m with respect to its...
The drawing shows an ideal gas confined to a cylinder by a massless piston that is...
The drawing shows an ideal gas confined to a cylinder by a
massless piston that is attached to an ideal spring. Outside the
cylinder is a vacuum. The cross-sectional area of the piston is A =
2.50 × 10-3 m2. The initial pressure, volume, and temperature of
the gas are, respectively, P0, V0 = 6.00 × 10-4 m3 and T0 = 273 K,
and the spring is initially stretched by an amount x0 = 0.092 m
with respect to its...
A cylinder with a movable piston is filled at 24oC with a gas that occupies 36.2cm3....
A cylinder with a movable piston is filled at 24oC
with a gas that occupies 36.2cm3. If the maximum
capacity of the cylinder is 65.2cm3, what is the highest
temperature to which the cylinder can be heated at constant
pressure without having the piston come out?
33) (a) A piston at 5.9 atm contains a gas that occupies a volume of 3.5...
33)
(a) A piston at 5.9 atm contains a gas that occupies a volume of
3.5 L. What pressure would have to be placed on the piston to force
the volume to adjust to 0.32 L?
_____________ atm
(b) A piston at -44.0°C contains a gas that occupies a volume of
2.5 L. To what temperature would the gas have to be heated to
increase the volume to 4.4 L at constant pressure?
__________ °C
(c) A piston at 795...
Two moles of gas are confined in a piston–cylinder device. Initially, the temperature is at 300...
Two moles of gas are confined in a piston–cylinder device.
Initially, the temperature is at 300 K and the pressure is 1 bar.
The gas is compressed isothermally to 5 bar. If the ideal gas heat
capacity is C ig P = 7R/2, find Q, W, ?U, ?H, and ?S if:
(a) the gas is ideal, or
(b) the gas satisfies the van der Waals equation of state with a
= 5.0 × 106 bar · cm6/mol2 and b =...
Two moles of nitrogen gas at 25°C, confined within a cylinder by a piston maintaining a...
Two moles of nitrogen gas at 25°C, confined within a cylinder by
a piston maintaining a constant pressure of 1 atm, is heated with
5.30 kJ of energy. Assume all the energy is used to do work of
expansion of the gas at 1 atm. What will be the final temperature
of the gas? Recall ∆H = ∆E + P∆V and watch your units!
cooling a gas in a piston cylinder. if the boundary work of piston cylinder is compressed...
cooling a gas in a piston cylinder.
if the boundary work of piston cylinder is compressed
W = -10 kj
determine if it is gained or lost by the gas.
Type or paste que One mole of an ideal gas CP=7R2 in a closed piston/cylinder arrangement...
Type or paste que
One mole of an ideal gas
CP=7R2 in a closed
piston/cylinder arrangement is compressed from
Ti=200 K , Pi=0.5
MPa to Pf=5 MPa by following
paths:.
ADIABATIC path
ISOTHERMAL path
Calculate ΔU, ΔH, Q and WEC for both paths.
NOTE: Keep the answers in terms of ‘R’.
stion here
Gas is confined in a tank at a pressure of 11.5 atm and a temperature of...
Gas is confined in a tank at a pressure of 11.5 atm and a
temperature of 22.0°C. If two-thirds of the gas is withdrawn and
the temperature is raised to 60.0°C, what is the pressure of the
gas remaining in the tank?
A sample of an ideal gas occupies a volume of 25.0 liters at a pressure of...
A sample of an ideal gas occupies a volume of 25.0 liters at a
pressure of 1.20 atm and a temperature of 75 degrees C. How many
moles of gas are present in the container?
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