Question

(a) A piston at 4.9 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 1.3 L?

_____atm

(b) A piston at -57.0°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 5.4 L at constant pressure?

_____°C

(c) A piston at 145 torr contains a gas that occupies a volume of 4.7 L. What pressure would have to be placed on the piston to force the volume to adjust to 1.08 L?

______atm

Answer #1

According to ideal gas equation, PV = n*RT

(a)

Keeping the temperature constant, we have :

P1V1 = P2V2

Putting values we get :

4.9*3.5 = P_{2}*1.3

Thus, P_{2} = 13.19 atm

Thus, extra pressure required = 13.19-4.9 = **8.29
atm**

(b)

Keeping the pressure constant, we have :

V1/T1 = V2/T2

T1 = -57 C = -57+273 = 216 K

Putting values we get :

2.5/216 = 5.4/T2

Thus, **T _{2} = 466.56 K** =

(c)

Keeping the temperature constant, we have :

P1V1 = P2V2

Putting values we get :

145*4.7 = P_{2}*1.08

Thus, P_{2} = 631 torr

Thus, extra pressure required = 631-145 = **486
torr**

(a) A piston at 1.5 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 0.17 L?
______atm
(b) A piston at 120.0°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 4.8 L at constant pressure?
_______ °C
(c) A piston at 4145 torr contains...

1. A sample of krypton gas occupies a volume of
9.48 L at 61.0°C and
407 torr. If the volume of the gas sample is
increased to 12.2 L, while its
temperature is decreased to
5.0°C, the resulting gas pressure will be what
torr?
2. A sample of carbon dioxide gas at a pressure
of 0.972 atm and a temperature of 225
°C, occupies a volume of 520 mL. If the
gas is heated at constant pressure until its
volume...

1a. A sample of methane gas at 292 K and 0.160 atm occupies a
volume of 2.06 L. If the pressure of the gas is increased, while at
the same time it is heated to a higher temperature, the final gas
volume
a. will be smaller than 2.06 L.
b. will be larger than 2.06 L.
c. could be larger or smaller than 2.06 L depending on the final
pressure and temperature.
1b. A sample of oxygen gas at 300...

A sample of krypton gas at 287 K and 0.808 atm occupies a volume
of 4.78 L. If the gas is compressed into a smaller volume, while at
the same time it is heated to a higher temperature, the final gas
pressure will be lower than 0.808 atm. could be higher or lower
than 0.808 atm depending on the final volume and temperature. will
be higher than 0.808 atm.
A sample of xenon gas at 310 K and 0.563 atm...

A sample of oxygen gas occupies a volume of 7.79 L at 56.0°C and
1.17 atm.
If it is desired to increase the volume of the gas sample to
9.70 L, while increasing its pressure to 1.54 atm, the temperature
of the gas sample at the new volume and pressure must be-------
°C.

1/ A sample of xenon gas that occupies a volume
of 42.7 L at a temperature of 0 °C and a pressure
of 1 atm contains (......) moles of gas.
2/ A sample of nitrogen gas collected at STP
occupies a volume of 13.4 L. How many moles of gas
does the sample contain? (.......) mol
3/ What volume is occupied by a 0.920 mol
sample of carbon dioxide gas at a temperature of 0
°C and a pressure of...

A quantity of CO gas occupies a volume of 0.70 L at 0.90 atm and
318 K . The pressure of the gas is lowered and its temperature is
raised until its volume is 2.6 L . Find the density of the CO under
the new conditions.

A quantity of CO gas occupies a volume of 0.50 L at 1.5 atm and
281 K . The pressure of the gas is lowered and its temperature is
raised until its volume is 2.3 L . Find the density of the CO under
the new conditions.

A sample of ideal gas at room temperature occupies a volume of
36.0 L at a pressure of 692 torr . If the pressure changes to 3460
torr , with no change in the temperature or moles of gas, what is
the new volume, V2?

For an ideal gas, calculate the following quantities.
(a) The pressure of the gas if 0.135 mol occupies 207 mL at
25°C.
______atm
(b) The temperature (in kelvins) at which 0.0250 mol occupies
1.00 L at 0.563 atm. K (c) The number of moles in 4.50 L at -7°C
and 715 torr. Remember 1atm = 760 torr.
_____mol
(d) The volume occupied by 4.72 10-3 mol at 40.°C and a pressure
of 1.57 kPa. Remember 1 atm = 101.325 kPa...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 8 minutes ago

asked 8 minutes ago

asked 8 minutes ago

asked 8 minutes ago

asked 15 minutes ago

asked 22 minutes ago

asked 28 minutes ago

asked 31 minutes ago

asked 34 minutes ago

asked 37 minutes ago

asked 45 minutes ago

asked 47 minutes ago