Thermodynamics Review Practice

What would be the effect on the particles if more heat is supplied to the system?

• They would slow down
• They would stop moving
• They would speed up
• There would be no effect

Tags

NGSS.HS-PS1-5

What is the formula used to calculate the heat energy needed to raise the temperature of any substance?

• Q = C*m*∆T

• Q = C*m

• Q =  ½ m*v

• Q=m*ΔH

Tags

NGSS.HS-PS3-1

Specific heat is the amount of energy needed to raise the temperature by one degree Celsius of 1 gram of a substance.

• True
• False

If the specific heat capacity of water is 4 J/g*°C, how much heat is required to increase the temperature of 12 g of water from 25 °C to 55 °C? 

• 1440 C

• 2640 J

• 1440 J

• 2640 K

Tags

NGSS.HS-PS3-1

The specific heat(c) of copper is 0.39 J/g °C. What is the temperature change(∆t) when 100 Joules of heat(Q) is added to 20 grams?

• 12.82 °C

• 24.12 °C

• 351 °C

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

You have 32 g of water with specific heat of 4 J/gŸ°C.  The temperature changes from 25° C to 75° C.  How much heat energy is needed?

• 9600 J

• 6.4 C

• 7500 J

• 6400 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

A 14.5 g piece of iron absorbs 1000 joules of heat energy, and its temperature changes from 25°C to 175°C. Calculate the specific heat capacity of iron.

• 0.46 J/g^oC

• 1.654 J/g^oC

• 2,567,446.875 J/g^oC

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

How many joules of heat are needed to raise the temperature of 10.0 g of aluminum from 22.0°C to 55.0°C, if the specific heat of aluminum is 0.90 J/g*C?

• 297 Joules

• 0.3 Joules

• 297 J/g*C

• 0.003 J/g*C

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

You have 500 g of water at 23°C that is heated with 30 kJ of heat energy.

What is the final temperature of the water?

( Heat capacity of water is 4 J/g*C )

• 29 C

• 42 C

• 15 C

• 38 C

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

How many kilojoules of heat energy are required to change the temperature of 250 g of H₂O from 13 C to 48 C?

• 35 kJ

• 48000 J

• 34500 J

• 48 kJ

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4