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American National Curriculum

High School

Chemistry

Gases

Gases - Chemistry Questions asked by Filo students

Question 1

IX CHEMISTRY IIT FOUNDATION PRACTICE ZONE SINGLE CORRECT CHOICE TYPE: 1. The height of mercury column in a manometer before connecting to the gas cylinder 13.

10 cm

and after connecting to the gas cylinder is

86 cm

. Find the pressure exerted by th gas .

$1 \times 1 0^{6}$ dyne $/ cm^{3}$
$1 \times 1 0^{- 6}$ dyne $/ cm^{3}$
$1.1 \times 1 0^{- 6}$ dyne $/ cm^{3}$
$1.1 \times 1 0^{- 16}$ dyne / an

Topic:

Gases

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Question 2

2. Find the no. of moles present in

16 gm

O_{2}

$1.0$ mole
$0.5$ mole
$2.5$ mole
$4.0$ mole

Topic:

Gases

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Question 3

The graph drawn at constant temperature is known as

None.

Topic:

Gases

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Question 4

Internal energy:-

⟶

at constant volumee

U = f (T, V)

\Rightarrow

Absolute value of internal enengy can not be determined, we can calculate only the change. (dU) Cafe-1 Ideal Gas

PE \neq = F (V) \Rightarrow U = F (T) \Rightarrow (\frac{\partial U}{\partial U})_{T} = 0 ϕ (d U = x C_{V} \cdot d T

3) Case-2 Real Gas

U = f (T, V) d U = n C_{U} d T + (\frac{\partial U}{\partial V})_{T} \cdot d V

Topic:

Gases

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Question 5

Name: Date: Period: Matching. Write the letter that matches the formula to the correct name. True/False. Please write the whole word. 5. Gas particles do not attract or repel each other. 6. Gas particles come to a stop when the hit each other. 7. Gas particles lose all of their kinetic energy when they collide 8. As pressure increases, volume decreases. Multiple Choice: 9. What units are used for temperature when calculating pressure and volum

Celsius
Kelvin
Fahrenheit
Degrees

Topic:

Gases

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Question 6

Which of the following numbers represent STP (standard temperature ar

$0.00 \circ C$ and $1.00 atm$
$0.0 0^{\circ} C$ and $1.00 kPa$
$0.00 K$ and $1.00 atm$
$100 K$ and 100 torr

Topic:

Gases

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Question 7

If the temperature of a balloon increases, what happens to the volume?

Increases
Stays the same
Decreases
Impossible to know

Topic:

Gases

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Question 8

Why is 22.4 liters called the molar volume of a gas?

Topic:

Gases

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Question 9

What is STP in chemistry?

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Gases

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Question 10

How do you graph Boyle's law?

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Gases

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Question 11

What does the R stand for in the ideal gas law (PV=nRT)?

Topic:

Gases

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Question 12

What is the formula for calculating the pressure of a gas?

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Gases

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Question 13

How do you find density in the ideal gas law?

Topic:

Gases

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Question 14

How would you solve for n in PV=nRT?

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Gases

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Question 15

Under what conditions is a gas closest to properties of an ideal gas?

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Gases

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Question 16

What is n in the equation of the ideal gas law?

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Gases

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Question 17

Explain why ammonia is a gas at room temperature and pressure.

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Gases

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Question 18

A wind turbine transfers energy from ______ energy stores which one word completes the sentence

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Gases

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Question 19

formula of steam is ?

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Gases

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Question 20

Give reasons why oxygen is a gas at room temperature

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Gases

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Gases - Chemistry Questions asked by Filo students

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