Font size
Worksheets005. Thermal Physics & Gas Laws
Total questions: 19
Worksheet time: 41mins
The specific heat of platinum is 133 J/kg°C. 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
1117
-1117
857
-857
Specific heat of water is 4180 J/kg°C. Specific heat of wood is 1760 J/kg°C What material needs more heat energy to raise the temperature?
A pot of 2400g of water at a temperature of 25˚C is heated on a stove until the water boils (100˚C). The specific heat of water is 4180 J/kg/K.
Determine the heat energy needed to heat the water in the pot to boiling.
The specific heat(c) of copper is 390 J/kg/K. What is the temperature change(∆t) when 100 Joules of heat is added to 20 grams?
12.82 °C
24.12°C
1.95 °C
5128 °C
The amount of heat required to change the phase of a substance depends on two factors which are
surrounding temperature
temperature change
material
the mass
specific latent heat of vaporisation is
the amount of heat required to change 1 kg of the substance from the solid to liquid phase without change in temperature
the amount of heat required to change 1 kg of the substance from the liquid to gaseous phase without change in temperature
the amount of heat required to change the temperature 1 kg of the substance by 1 degree Celcius
Latent heat is
the heat absorbed or released at a boiling process during a change of phase
the heat absorbed or released at a constant temperature during a change of phase
the heat absorbed or released at a constant temperature during a change of phase of 1 kg object
the heat absorbed or released by an object to increase or decrease its temperature by 1 degree Celcius
Water molecules have the greatest kinetic energy in
Ice at 0 ⁰C
Water at 90 ⁰C
Water at 373 K
Steam at 150 ⁰C
The graph shows the cooling curve of a substance. At which stages the specific latent heat released?
AB and CD
BC and DE
AB and EF
BC and CD
Calculate the energy absorbed by 30 g of 100 ⁰C water that is turned into 100 ⁰C Steam, if the Latent heat of Vaporisation is 2.26MJ/Kg
67 800 J
6 7800 J
678 J
67.8 J
If the temperature in a tank rises 15.6oC, how many Kelvin will it rise?
25.6K
288.6K
273K
15.6K
Adding heat to a non-flexible container of gas will cause
the molecules to slow down and hit the sides less often. The pressure will decrease.
the temperature to increase and molecules to speed up. The pressure will not be affected.
the molecules to speed up and hit the sides more often. The pressure will increase.
What stays constant in Boyle's Law
Volume
Temperature
Pressure
Gas
