WorksheetsS1-Q1-U4 L1 till specific heat
Total questions: 10
Worksheet time: 30mins
Temperature is a measure of the...
total energy in a substance
total kinetic energy in a substance
average potential energy in a substance
average kinetic energy of molecules in a substance
As the temperature of an abject increases, its molecules
move faster
get samller (condense)
move farther apart (expand)
move faster and farther apart (expand)
How much energy is needed to raise the temperature of a 20.0g piece of copper from 15.0 degrees Celsius to 25.0 degrees Celsius? (The specific heat of copper is 0.385 J/g C)
20 X (25-15) =200 J
20 X 0.385 X (25-15)= 77 J
20 X 0.385 X (15-25)= -77 J
20 X 4.18X (25-15)= 836 J
When the objects are in thermal contact attain the same temperature, they said to be in .......
Mechanical equilibrium
Electric equilibrium
thermal equilibrium
balanced condition
A piece of copper of mass 400 g absorbed a quantity of heat of 9360 J & its temperature raised from 20˚C to 50˚C. What is the specific heat of copper?
-0.78 j/gC
702 j/gC
0.78 j/gC
78 j/gC
the value of specific heat of water in J/Kg.˚C unit.
4.18
4.18 x 10-3
4.18 x 103
0.0418
203 calories equal ………. approximately
848.5 KJ
848.5 J
48.5 J
48.5 KJ
