Unit 12 Level 1 Review

3

Which statement is correct regarding the the q of an endothermic reaction ?

An endothermic reaction gains energy and therefore has a - q.

An endothermic reaction loses energy and therefore has a + q.

An endothermic reaction gains energy and therefore has a + q.

An endothermic reaction loses energy and therefore has a - q.

3

Which statement explains how thermal equilibrium is reached.

Thermal equilibrium is reached after an object of higher kinetic energy has transferred energy to an object of lower kinetic energy and there is equal amounts of kinetic energy in both objects.

Thermal equilibrium is reached after an object of lower kinetic energy has transferred energy to an object of higher kinetic energy and there is equal amounts of kinetic energy in both objects.

4

A piece of metal was placed in a cup of water. If the metal was originally 29C and the cup of water was 31C, at what temperature is thermal equilibrium reached?

2C

30c

60C

80C

1

Which of the following has the lowest average kinetic energy?

a 100.0 g block of iron at 37^oC

30.0 mL of water at 52^oC

350 mL of 6.0 M HCl at 25^oC

5.5 L of krypton gas at 19^oC and 1085 torr

1

A pack of noodles at room temperature is dropped into a pot of boiling water. If the system is defined as the noodles only, which of the following would be true?

q_sys is a positive value and q_surr is a positive value

q_sys is a positive value and q_surr is a negative value

q_sys is a negative value and q_surr is a positive value

q_sys is a negative value and q_surr is a negative value

1

Which equation correctly represent the following:
CO₂ + H₂O --> H₂CO₃ ΔH = -275.2 kJ

CO₂ + H₂O + 275.2 kJ --> H₂CO₃

CO₂ + H₂O --> H₂CO₃ + 275.2 kJ

CO₂ + H₂O - 275.2 kJ --> H₂CO₃

CO₂ + H₂O --> H₂CO₃ - 275.2 kJ

Obavezno

1

Obavezno

1

Obavezno

1

Obavezno

1

Obavezno

1

Obavezno

1

Obavezno

1

Obavezno

1

Obavezno

1

Obavezno

1

Unit 12 Level 1 Review

Which statement is correct regarding the the q of an endothermic reaction ?

Which statement explains how thermal equilibrium is reached.

A piece of metal was placed in a cup of water. If the metal was originally 29C and the cup of water was 31C, at what temperature is thermal equilibrium reached?

Which of the following has the lowest average kinetic energy?

A pack of noodles at room temperature is dropped into a pot of boiling water. If the system is defined as the noodles only, which of the following would be true?

Which equation correctly represent the following:
CO₂ + H₂O --> H₂CO₃ ΔH = -275.2 kJ

Which of the following are ways to speed up a reaction:

Which statement is correct regarding the the q of an endothermic reaction ?

Which statement explains how thermal equilibrium is reached.

A piece of metal was placed in a cup of water. If the metal was originally 29C and the cup of water was 31C, at what temperature is thermal equilibrium reached?

Which of the following has the lowest average kinetic energy?

A pack of noodles at room temperature is dropped into a pot of boiling water. If the system is defined as the noodles only, which of the following would be true?

Which equation correctly represent the following:
CO₂ + H₂O --> H₂CO₃ ΔH = -275.2 kJ

This reaction is

What letter represents the potential energy of the reactants in the forward reaction?

What letter represents the potential energy of the products in the forward reaction?

What letter represents the heat of reaction (forward reaction)?

What letter represents the activation energy of the forward reaction?

What letter represents the activation energy of the reverse reaction?

What letter represents the potential energy of the activated complex?

The reverse reaction is

If a catalyst were added, what letters would change?

Which of the following are ways to speed up a reaction:

This reaction is

What letter represents the potential energy of the reactants in the forward reaction?

What letter represents the potential energy of the products in the forward reaction?

What letter represents the heat of reaction (forward reaction)?

What letter represents the activation energy of the forward reaction?

What letter represents the activation energy of the reverse reaction?

What letter represents the potential energy of the activated complex?

The reverse reaction is

If a catalyst were added, what letters would change?

Unit 12 Level 1 Review

Unit 12 Level 1 Review

Which statement is correct regarding the the q of an endothermic reaction ?

Which statement explains how thermal equilibrium is reached.

A piece of metal was placed in a cup of water. If the metal was originally 29C and the cup of water was 31C, at what temperature is thermal equilibrium reached?

Which of the following has the lowest average kinetic energy?

A pack of noodles at room temperature is dropped into a pot of boiling water. If the system is defined as the noodles only, which of the following would be true?

Which equation correctly represent the following:CO2 + H2O --> H2CO3 ΔH = -275.2 kJ

Which of the following are ways to speed up a reaction:

Which statement is correct regarding the the q of an endothermic reaction ?

Which statement explains how thermal equilibrium is reached.

A piece of metal was placed in a cup of water. If the metal was originally 29C and the cup of water was 31C, at what temperature is thermal equilibrium reached?

Which of the following has the lowest average kinetic energy?

A pack of noodles at room temperature is dropped into a pot of boiling water. If the system is defined as the noodles only, which of the following would be true?

Which equation correctly represent the following:CO2 + H2O --> H2CO3 ΔH = -275.2 kJ

This reaction is

What letter represents the potential energy of the reactants in the forward reaction?

What letter represents the potential energy of the products in the forward reaction?

What letter represents the heat of reaction (forward reaction)?

What letter represents the activation energy of the forward reaction?

What letter represents the activation energy of the reverse reaction?

What letter represents the potential energy of the activated complex?

The reverse reaction is

If a catalyst were added, what letters would change?

Which of the following are ways to speed up a reaction:

This reaction is

What letter represents the potential energy of the reactants in the forward reaction?

What letter represents the potential energy of the products in the forward reaction?

What letter represents the heat of reaction (forward reaction)?

What letter represents the activation energy of the forward reaction?

What letter represents the activation energy of the reverse reaction?

What letter represents the potential energy of the activated complex?

The reverse reaction is

If a catalyst were added, what letters would change?

Which equation correctly represent the following:
CO₂ + H₂O --> H₂CO₃ ΔH = -275.2 kJ

Which equation correctly represent the following:
CO₂ + H₂O --> H₂CO₃ ΔH = -275.2 kJ