int spm f4 bab 4 heat

DISEDIAKAN OLEH : CIKGU WANQ (IDEA UNGGUL)

1

INTENSIF MAC 2015

PHYSICS

TOPICS : HEAT

NAME : ________________________________

GROUP : ________________________________

TEACHER’S NAME : _________________________

“Barang siapa yang keluar

untuk mencari ilmu, maka ia

berada di jalan Allah sampai

ia kembali” (HR Tirmidzi)

4.1 : Temperature, Heat and Thermal Equilibrium

3. The length of mercury column in thermal thermal equilibrium, with ice is 3.5 cm and with boiling water is 28.5 cm. Find the value of the temperature if the length of the mercury column is 15.5 cm.

2

4.

Find the temperature of the hot coffee.

4.2 : Specific Heat Capacity

5.

3

6.

4.3 : Latent Heat

4

8.

9. A 60 W immersion heater is used to boil liquid X. After boiling for 3 minutes, 5 g of the liquid X changes to steam. Calculate the specific latent heat of vaporization of liquid X ?

10. An electric kettle 2000 W is used to boil 100 g of water at 100 ˚C. How long does it take to dry all the water? [ specific latent heat of vaporization for water is 2260 kJ/kg ]

11. The initial temperature of 0.5 kg of water and 0.2 kg of ice are 90 ˚C and – 10 ˚C respectively. The specific heat capacity of ice and water are 2100 J kg -1 ˚C -1 and 4200 J kg -1 ˚C -1 . If the final temperature of the mixture is 40 ˚C, what is the specific latent heat of fusion of the ice.

5

4.4 : The Gas Laws

12.

6

13.

14.

7

15. A sealed of container contains a certain gas at a pressure of 5 atmospheres at a temperature of 27 ˚C. Find the pressure of the gas in the container if its temperature is raised to 87 ˚C.

8