Question

A 80.0 cm3 box contains helium at a pressure of 2.20 atm and a temperature of 90.0 ∘C. It is placed in thermal contact with a 200 cm3 box containing argon at a pressure of 3.70 atm and a temperature of 420 ∘C. Part A What is the initial thermal energy of each gas? Part B What is the final thermal energy of each gas? Part C How much heat energy is transferred, and in which direction?

Answer #1

A 90.0 cm3 box contains helium at a pressure of 2.50 atm and a
temperature of 110 ∘C. It is placed in thermal contact with a 220
cm3 box containing argon at a pressure of 4.00 atm and a
temperature of 390 ∘C.
a.) What is the initial thermal energy of each gas?
b.) What is the final thermal energy of each gas? (Enter your
answers numerically separated by a comma.)
c.) How much heat energy is transferred, and in...

A 10 cm -diameter cylinder contains argon gas at 10 atm pressure
and a temperature of 60 ∘C . A piston can slide in and out of the
cylinder. The cylinder's initial length is 19 cm . 2600 J of heat
are transferred to the gas, causing the gas to expand at constant
pressure. 1-What is the final temperature of the cylinder? 2-What
is the final length of the cylinder?

A 5 L box contains 2.1 L of Argon and 2.9 L of Helium, separated
by a partition. Both volumes are thermally isolated to the
surroundings. The temperature of the box is 320 K and the pressure
on both sides is 1.2 atm. After the partition is removed, and
equilibrium is established:
● What will the temperature and pressure be?
● What is the change in internal energy ΔU for the He+Ar
system?
● What is the change in entropy...

A container holds 1.5 g of argon at a pressure of 6.5 atm. How
much heat is required to increase the temperature by 100∘ C at
constant volume? How much will the temperature increase if this
amount of heat energy is transferred to the gas at constant
pressure?

An insulated thermos contains 124.0 cm3 of
hot coffee at a temperature of 80.0 °C. You put in 12.0 g
of ice cube at its melting point to cool the coffee. What is the
temperature of the coffee once the ice has melted and the system is
in thermal equilibrium? Treat the coffee as though it were pure
water. (Answer in °C)

A balloon contains Helium (a monatomic ideal gas) at a pressure
of 101325Pa and temperature of 20.0◦C. Please note that the
pressure inside of a balloon must always equal the atmospheric
pressure outside of the balloon.
(a) If the volume of the balloon is 0.015m3, how many moles of
Helium are inside the balloon?
(b) What is the rms speed of the Helium in the balloon? (The
molar mass g
of Helium is 4.002602mol.)
(c) If the temperature of the...

A cube 17 cm on each side contains 2.4 g of helium at 20∘C. 1400
J of heat energy are transferred to this gas.
1.)What is the final pressure if the process is at constant
volume?(in atm)
2.)What is the final volume if the process is at constant
pressure?(in cm^3)

A cube 17 cm on each side contains 2.4 g of helium at 20∘C. 1400
J of heat energy are transferred to this gas.
1.)What is the final pressure if the process is at constant
volume?(in atm)
2.)What is the final volume if the process is at constant
pressure?(in cm^3)

Charles's Law
A sample of helium gas at a pressure of 0.905 atm and a temperature
of 230°C, occupies a volume of 615mL. If the gas is cooled at
constant pressure until it's volume is 523mL, the temperature of
the gas sample will be ____°C
A sample of oxygen gas at a pressure of 960 mm Hg and
a temperature of 81°C, occupies a volume of 14.9 liters. I the gas
is heated at constant pressure at a temperature of...

4.40 g of nitrogen gas at 20.0 ∘C and an initial pressure of
2.00 atm undergo an isobaric expansion until the volume has
tripled.
Part A) How much heat energy is transferred to the gas to cause
this expansion?
Part B) The gas pressure is then decreased at constant volume
until the original temperature is reached. What is the gas pressure
after the decrease?
Part C) What amount of heat energy is transferred from the gas
as its pressure decreases?

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