Question

**A balloon is filled with oxygen (O2) at 20.0°C and 2.0
atm. The volume of the balloon after filling= 5.50 m3. The gas is
heated until its temperature= 80.0°C. During this process, the
balloon expands at constant pressure (2.0 atm). What is the heat
flow into the helium in J?**

Answer #1

A helium-filled balloon has a volume of 0.010 m3. The
temperature in the room and in the balloon is 20∘C. What is the
thermal energy of the helium in the balloon? Assume that due to
stretching of the balloon the pressure inside it is 1.1 atm.

Two moles of helium are initially at a temperature of 30.0 ∘C
and occupy a volume of 3.50×10−2 m3 . The helium first expands at
constant pressure until its volume has doubled. Then it expands
adiabatically until the temperature returns to its initial value.
Assume that the helium can be treated as an ideal gas.
A.) What is the total heat supplied to the helium in the
process? In J
B.) What is the total change in internal energy of...

A helium-filled toy balloon has a gauge pressure of 0.350 atm
and a volume of 11.0 liters. How much greater is the internal
energy (in J) of the helium in the balloon than it would be at zero
gauge pressure?

1.A helium-filled weather balloon has a volume of
811 L at 23 °C and
750 mm Hg. It is released and rises to an altitude
of 8.69 km, where the pressure is
281 mm Hg and the temperature is
-34 °C. The volume of the balloon at this altitude
is ______ L.
2.
A sample of hydrogen gas occupies a volume of
9.89 L at 44 °C and
0.944 atm.
If it is desired to decrease the volume of the...

A container holds 96.0 g of oxygen gas at a pressure of 8.00
atm. How much heat ? is required to increase the temperature by
80.0 ∘C at constant volume?

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?

3)Gas in a container is at a pressure of 1.1 atm and a volume of
5.0 m3. (a) What is the work done on the gas if it expands at
constant pressure to twice its initial volume? J (b) What is the
work done on the gas if it is compressed at constant pressure to
one-quarter of its initial volume? J
9)The surface of the Sun is approximately 5,550 K, and the
temperature of the Earth's surface is approximately 285...

A balloon is filled to a volume of 1.50 L with 3.00 moles of gas
at 25 °C. With pressure and temperature held constant, what will be
the volume of the balloon if 0.30 moles of gas are added?

A balloon is filled with 4.0L air to an internal pressure of
1.25 atm at 21.2°C. That balloon is carried
to the bottom of a lake, where the temperature is now 10.9°C and
the pressure is 5.95 atm.
a. What is the new volume of the balloon?
b. How many moles of air are in the balloon?

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