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Worksheets4.2 Specific Heat Capacity
Total questions: 15
Worksheet time: 14mins
The specific heat of platinum is 133 J kg-1°C-1. How much heat(Q) is released when a 10 g piece of platinum cools from 100°C to 50°C?
66.5 J
665 J
0.0266 J
0.665 J
20 g of water. specific heat of water is 4200 J kg-1°C-1. temperature changes from 25° C to 20° C, how much heat energy (Q) moves from the water to the surroundings?
418 J
430 J
420 J
42000 J
The SI units J kg-1°C-1 measures
Specific heat capacity
Heat capacity
temperature
heat energy
The specific heat(c) of copper is 390 J kg−1°C−1 . What is the temperature change when 100 J of heat is applied on the 20 g of copper?
12 °C
24.12°C
1.95 °C
12.82 °C
_______________ states that the amount of heat energy is required to raise 1 kg of object's temperature of 1°C.
Conduction
Convection
Specific heat capacity
Heat capacity
The temperature of an unknown piece of metal with a mass of 30 g changes from 25 °C to 35 °C when the metal absorbs 350 J of energy. What is the specific heat capacity of the metal?
1166.7 J kg-1°C-1
-1.17 J kg-1°C-1
-1166.7 J kg-1°C-1
-0.857 J kg-1°C-1
The symbol for heat capacity is .......
c
Q
C
t
Which material heats up slowest?
Aluminium
Concrete
Diamond
Glass
Water
Which material heats up quickest?
Aluminium
Concrete
Diamond
Glass
Water
What is the equation for specific heat capacity?
Q=mcΔθ
Q=Δθmc
Q=mcΔθ
Q=mcΔθ
Q=mΔcT
1kg of water cools from 100°C to 20°C. Which of the following is true? [cwater = 4200 J kg-1°C-1]
It gives out 336 kJ
It gives out 336 MJ
It takes in 336 kJ
It takes in 336 MJ
It doesn't take in or give out any energy
2 kg of glass at a temperature of 20°C is given 84 000 J. What is the final temperature?
+50°C
-50°C
-30°C
70°C
20°C
In heat capacity or specific heat capacity equations, what does the triangle represent?
Temperature
energy
mass
change in
change in temperature
A piece of silver is heated to 87.36 oC and dumped into a calorimeter containing 65.86 g of water at a temperature of 24.03 oC. Calculate the mass of this silver sample if the final temperature of the silver and water are 28.69 oC.
(csilver = 235 J kg-1oC-1)
(cwater = 4200 J kg-1oC-1)
0.0123 kg
0.0935 kg
93.500 kg
14819 kg
