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Questionnaire 2 Chem (11th)

Total questions: 15

Worksheet time: 16mins

Name
Class
Date
1.

Which equation represents Dalton's Law?

a)

Ptotal = P1 + P2 + P3

b)

PV = nRT

c)

P1 / T1 = P2 / T2

2.

Which container will have a lower pressure?

a)

left

b)

right

c)

they both have the same pressure

3.

The amount of force pushing on an area is called....

a)

Temperature

b)

Viscosity

c)

Volume

d)

Pressure

4.

A mixture of H2, Ne, & O2 has a pressure of 12.4 atm. If Hydrogen measures 5.6 atm and Oxygen measures 2.0 atm, what is the pressure of Neon?

a)

7.6 atm

b)

4.8 atm

c)

5.4 atm

5.

The ratio of moles of the individual gases in a mixture to the total number of moles is called ___

a)

fractional molarity

b)

fractional distillation

c)

the molar fraction

6.

760 mmHg is equal to

a)

1 torr

b)

760 atm

c)

760 torr

d)

101 Pa

7.

A gas is at a pressure of 760 mm Hg. What is its pressure in psi?

a)

14.7 psi

b)

1 psi

c)

205 psi

d)

0.547 psi

8.

How many mm Hg is a pressure of 1.05 atm?

a)

529 mm Hg

b)

798 mm Hg

c)

104.8 mm Hg

d)

760 mm Hg

9.

In dry air, what is PNitrogen ?

a)

79.11 kPa

b)

78.08 %

c)

101.32 kPa

10.

In an ideal gas, volume and temperature have a ______ proportionality.

a)

direct

b)

inverse

c)

exponential

11.

A sample of neon gas at 760 torr has a volume of 5.0 L and a temperature of 17oC. Find the new volume of the gas after the temperature has been increased to 47oC and the pressure reduced to 700 torr.

a)

5.52 L

b)

13.82 L

c)

15 L

12.

A sample of nitrogen occupies a volume of 250 mL at 25 oC and at 1 atm. What volume will it occupy at 95 oC and 0.3 atm?

a)

1029.08 mL

b)

950 mL

c)

3166.6 mL

13.

The volume of a sample of a gas at 273 oC is 200 liters. If the volume is decreased to 100 liters at constant pressure, what will be the new temperature of the gas?

a)

0 K

b)

136.5 K

c)

273 K

14.
A sample of oxygen gas in a closed system has a volume of 200 milliliters at 600 K. If the pressure is held constant and the temperature is lowered to 300 K, the new volume of the gas will be -
a)
400 milliliters.
b)
300 milliliters.
c)
100 milliliters.
d)
200 milliliters.
15.
A gas with a volume of 400 mL at 120 οC is heated until its volume is 700 mL.  What is the new temperature ( in degree Celsius) of the gas if the pressure is constant?
a)
4 14.75 οC
b)
687.75 οC
c)
210 οC
d)
68.57 οC