Temperature is a measure of the...

average kinetic energy of molecules in a substance

total kinetic energy in a substance

average potential energy in a substance

When thermal energy is added to a substance, the substance's particles move:

More rapidly at an increased distance from each other.

More rapidly with less distance between each other.

More slowly with a greater distance between each other.

More slowly with a reduced distance between each other.

Heat transfer by conduction occurs when...

large numbers of atoms move from place to place

atoms give off heat in the form of electromagnetic waves

electromagnetic waves travel from place to place through a vacuum

Heat transfer by convection occurs when...

large numbers of atoms move from place to place

electrons bump into other electrons

atoms give off heat in the form of electromagnetic waves

electromagnetic waves travel from place to place through a vacuum

A substance with a high specific heat:

Requires a lot of energy to become hot.

Does not requires a lot of energy to become hot.

The tendency of energy to spread out

The tendency of objects to warm up

The tendency of energy to make heat

The tendency of objects to do work

Solid magnesium dissolves in a hydrochloric acid, releasing hydrogen gas and heat from a solution of magnesium chloride. What is the sign on ΔH for this reaction?

Negative because it is exothermic

Negative because it is endothermic

Positive because it is exothermic

Positive because it is endothermic

When ammonium nitrate dissolves in water, the solution gets cold. Which is true?

Reaction is ENDOTHERMIC with positive ΔH

Reaction is ENDOTHERMIC with -ΔH

Reaction is EXOTHERMIC with a -ΔH

Reaction is EXOTHERMIC with +ΔH

A reaction has a positive ΔH and a positive ΔS. Which of the following is true?

It will be spontaneous at high temperatures.

It will be spontaneous at all temperatures.

It will be nonspontaneous at all temperatures.

It will be spontaneous at low temperatures.

A 5.00 gram sample of a metal at 85.0 °C comes in contact with 100.0 grams of water at 25.0 °C. What is the direction of the heat flow and why?

Metal to water, since heat flows from high temp. to low temp.

Metal to water, since heat flows from low mass to high mass

Water to metal, since heat flows from high mass to low mass

Water to metal, since heat flows from low temp. to high temp.

Thermodynamically favorable reactions...

occur without the addition of work

occur only with the addition of work

Which of the following possesses the greatest amount of entropy?

2 mol of Ar(g) at 0.5 atm and 400 K

1 mol of Ar(g) at 0.5 atm and 298 K

1 mol of Ar(g) at 0.5 atm and 400 K

2 mol of Ar(g) at 1 atm and 400 K

The reaction with the largest increase in entropy is...

CH 4 (l) + 2O 2 (g) → CO 2 (g) + 2H 2 O(g)

CH 4 (g) + 2O 2 (g) → CO 2 (g) + 2H 2 O(g)

CH 4 (l) + 2O 2 (g) → CO 2 (g) + 2H 2 O(l)

CH 4 (g) + 2O 2 (g) → CO 2 (g) + 2H 2 O(l)

For a particular chemical reaction ΔH = 5.5 kJ and ΔS = -25 J/K Under what temperature conditions is the reaction thermodynamically favored?

The reaction is not spontaneous at any temperatures.

The reaction is spontaneous at all temperatures.

AP Chemistry Application of Thermodynamics

10th Grade - University

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51 Qs

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AP Chemistry Application of Thermodynamics

Quiz

•

Chemistry

•

10th Grade - University

•

Practice Problem

•

Hard

•

NGSS

HS-PS1-4, HS-PS3-4, HS-PS3-1

Standards-aligned

Charles Martinez

FREE Resource

51 questions

Show all answers

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The heat content of a system at constant pressure is called

entropy

enthalpy

heat

energy

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

The capacity to do work or transfer heat

temperature

energy

power

enthalpy

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

NGSS.HS-PS3-4

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

The heat required to raise the temperature of WATER 1∘C

calorie

joule

specific heat

energy

Tags

NGSS.HS-PS3-4

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Formula for solving specific heat problems

q = mcΔT

H = ΔH x moles

H = ΔH x grams

products - reactants

Tags

NGSS.HS-PS3-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The following graph shows a(n)

endothermic reaction

exothermic reaction

increase in entropy

decrease in entropy

Tags

NGSS.HS-PS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An endothermic reaction feels _____ to the touch

warm

cool

Tags

NGSS.HS-PS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of reaction is shown?

reactants

endothermic

exothermic

products

Tags

NGSS.HS-PS1-4

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AP Chemistry Application of Thermodynamics

51 questions

The heat content of a system at constant pressure is called

The capacity to do work or transfer heat

The heat required to raise the temperature of WATER 1∘C

Formula for solving specific heat problems

The following graph shows a(n)

An endothermic reaction feels _____ to the touch

What type of reaction is shown?

In an exothermic process the surrounding looses heat.

H₂ + 2 C + N₂+ 270.3 kJ --> 2 HCN
Is this reaction endothermic or exothermic?

Is the combustion of gasoline endothermic or exothermic?

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Chemistry

AP Chemistry Application of Thermodynamics

51 questions

The heat content of a system at constant pressure is called

The capacity to do work or transfer heat

The heat required to raise the temperature of WATER 1∘C

Formula for solving specific heat problems

The following graph shows a(n)

An endothermic reaction feels _____ to the touch

What type of reaction is shown?

In an exothermic process the surrounding looses heat.

H2 + 2 C + N2 + 270.3 kJ --> 2 HCNIs this reaction endothermic or exothermic?

Is the combustion of gasoline endothermic or exothermic?

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Chemistry

H₂ + 2 C + N₂+ 270.3 kJ --> 2 HCN
Is this reaction endothermic or exothermic?