Question 1

In the equation $\Delta$ H = m c $\Delta$ T , what does the m represent?

Accepted Answer

mass of the substance heated

Answer

mass of the substance burned

Answer

mass of the can

Answer

change in mass of the substance

Question 2

In the equation $\Delta$ H = m c $\Delta$ T , what does the c represent?

Accepted Answer

specific heat of the substance heated

Answer

change in heat of the substance burned

Answer

change in temperature of the substance burned

Answer

mass of the substance heated

Question 3

In the equation $\Delta$ H = m c $\Delta$ T , what does the $\Delta$ T represent?

Accepted Answer

change in temperature of the substance heated

Answer

change in heat of the substance burned

Answer

heat released from the substance burned

Answer

mass of the substance heated

Question 4

In the equation $\Delta$ H = m c $\Delta$ T , what does the $\Delta$ H represent?

Accepted Answer

change in heat of the substance burned

Answer

change in temperature of the substance heated

Answer

mass of the substance heated

Answer

change in mass of the substance burned

Question 5

In lab, a student takes a Takis snack chip with a mass of 2.25g and burns it. The burning food causes 75.0 ml of water to rise from 22.0^oC to 26.3^oC. What value should be used for the specific heat if the answer needs to be in calories?

Accepted Answer

1.0

Answer

22.0

Answer

26.3

Answer

4.184

Question 6

In lab, a student takes a Takis snack chip with a mass of 2.25g and burns it. The burning food causes 75.0 ml of water to rise from 22.0^oC to 26.3^oC. What value should be used for the change in temperature?

Accepted Answer

4.3

Answer

26.3

Answer

22.0

Answer

75.0

Question 7

In lab, a student takes a Takis snack chip with a mass of 2.25g and burns it. The burning food causes 75.0 ml of water to rise from 22.0^oC to 26.3^oC. What value should be used for the mass of substance heated?

Accepted Answer

75.0

Answer

1.0

Answer

4.3

Answer

4.184

Question 8

In lab, a student takes a Takis snack chip with a mass of 2.25g and burns it. The burning food causes 75.0 ml of water to rise from 22.0^oC to 26.3^oC. What value should be used for the final temperature of substance heated?

Accepted Answer

26.3

Answer

1.0

Answer

4.3

Answer

4.184

Question 9

In lab, a student takes a Takis snack chip with a mass of 2.25g and burns it. The burning food causes 75.0 ml of water to rise from 22.0^oC to 26.3^oC. What value should be used for the initial temperature of substance heated?

Accepted Answer

22.0

Answer

4.3

Answer

1.0

Answer

26.3

Question 10

In lab, a student takes a Takis snack chip with a mass of 2.25g and burns it. The burning food causes 75.0 ml of water to rise from 22.0^oC to 26.3^oC. How much energy in calories was released by the burning Takis snack chip?

Accepted Answer

323

Answer

9.7

Answer

9.675

Answer

1349

Question 11

In lab, a student takes a Takis snack chip with a mass of 2.25g and burns it. The burning food causes 75.0 ml of water to rise from 22.0^oC to 28.2^oC. How much energy in calories was released by the burning Takis snack chip?

Accepted Answer

465

Answer

4.3

Answer

1349

Answer

323

Question 12

In lab, a student takes a Takis snack chip with a mass of 2.25g and burns it. The burning food causes 55.0 ml of water to rise from 22.0^oC to 29.0^oC. How much energy in calories was released by the burning Takis snack chip?

Accepted Answer

385

Answer

323

Answer

1611

Answer

465

Question 13

Thinking about the Law of Conservation of Energy, what assumption did we make that allowed us to calculate the energy released from the burning food?

Accepted Answer

All the heat energy was transferred to the water in the can.

Answer

All the heat energy was transferred to the air in the room.

Answer

All the heat energy was transferred to the paper clip holding the marshmallow.

Answer

Some of the heat energy was transferred to air in the room.

Question 14

In lab, a student takes a Takis snack chip with a mass of 2.25g and calculates that 625 calories of energy were released. How much energy in Calories was released by the burning Takis snack chip?

Accepted Answer

0.625

Answer

278

Answer

625

Answer

0.278

Question 15

In lab, a student takes a Takis snack chip with a mass of 2.25g and calculates that 625 calories of energy were released. How many Calories/gram were released by the burning Takis snack chip?

Accepted Answer

0.278

Answer

625

Answer

278

Answer

0.625

Question 16

In lab, a student takes a Takis snack chip with a mass of 2.25g and calculates that 785 calories of energy were released. How much energy in Calories was released by the burning Takis snack chip?

Accepted Answer

0.785

Answer

785

Answer

0.625

Answer

625

Question 17

In lab, a student takes a Takis snack chip with a mass of 2.25g and calculates that 785 calories of energy were released. How many Calories/gram were released by the burning Takis snack chip?

Accepted Answer

0.349

Answer

349

Answer

278

Answer

0.278

Question 18

The specific heat of a substance is the amount of thermal energy needed to _____.

Accepted Answer

raise 1 gram of the substance 1^oC

Answer

raise 1 gram of the substance 10^oC

Answer

raise 10 grams of the substance 1^oC

Answer

raise 1 kilogram of the substance 1^oC

Question 19

Which of the following is a unit for energy?

Accepted Answer

Joule

Answer

Kelvin

Answer

Celsius

Answer

Fahrenheit

Question 20

Which of the following is NOT a unit for energy?

Accepted Answer

Kelvin

Answer

Cal

Answer

Joule

Answer

cal

Question 21

Which of the following is NOT unit for temperature?

Accepted Answer

Calorie

Answer

Fahrenheit

Answer

Kelvin

Answer

Celsius

Question 22

Which of the following is a unit for temperature?

Accepted Answer

Celsius

Answer

Joule

Answer

cal

Answer

Cal

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