F4 Chapter4.2 Specific heat capacity

Diagram below shows the formation of sea breeze. Which statement is correct?

• The specific heat capacity of sea water is higher then the specific heat capacity of lane

• The density of air above land is higher than the density of air above sea water

• The temperature of land becomes lower than the temperature of sea water

• The speed of cool air is higher than the speed of hot air

• increase

• decrease

• remain the same

• copper will melt

Table below shows the specific heat capacities of 4 different metal A,B,C and D. Which of the metals can be used to produce the handle of a cooking pot?

• A

• B

• C

• D

Diagram below shows the apparatus used to determine the specific heat capacity of a copper cylinder. At the end of the experiment, it is found that the value of the specific heat capacity is higher than the theoretical value. Which of the following cause the difference?

• Heat absorbed by the thermometer is equal to heat release by the immersion heater

• Heat released by the immersion heater is not absorbed by the thermometer

• Heat release to surrounding

• Heat release is bigger than specific capacity of the solid block

Which of the following metal P,Q,R and S below shows the lowest increase in temperature if the metal blocks of same mass heated with same amount of heat for 10 minutes.

• P

• Q

• R

• S

300g f water at a temperature of 20°C is mixed into a beaker that contains 900g of water at a temperature of 60°C. Calculate the maximum final temperature achieved by the mixture.

• 50°C

• 60°C

• 40°C

• 30°C

200g of liquid X at a temperature of 40°C is poured into a beaker that contains Mg of liquid x at an initial temperature of 15°C. The final temperature of the mixture is 25°C. What is the value of M?

• 240g

• 300g

• 350g

• 500g

• 1°C

• 4°C

• 8°C

• 10°C

The experiment that use to determine the specific heat capacity of an aluminum block is wrap with felt cloth. Why?

• To prevent the heat capacity increase too fast.

• To make sure the heat is fully transfer from the aluminum block to the thermometer.

• To prevent the heat lost to the surrounding

• To reduce the heat lost to the surrounding

Water is used in a thermal radiator in countries with cold weather because water has

• a high boiling point

• a low freezing point

• a high specific heat capacity

• a high density