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WorksheetsThermal Physics
Total questions: 10
Worksheet time: 10mins
The value of universal gas constant is …………………………..
1.38 x 10-23 JK-1
8.31 J mol-1 K-1
6.023 x 1023
The SI unit of heat energy is …………………..
Joule
Kelvin
K-1
According to Boyle’s law, at constant temperature, the volume of a gas is directly proportional to the temperature of the gas.
(a)
ZnCO3 --------> ZnO + CO2 is a…………………….
Decomposition reaction
Combination reaction
Single Displacement reaction
Double Displacement reaction
Electrolysis is a decomposition reaction caused by…………………………..
Heat
Electricity
Light
Mechanical energy
Citrus fruits require neutral soil.
(a)
What is the normal pH value of our body?...........
6.5 to 7.8
7 to 7.8
5.5 to 6.5
A …………………… is a substance which increases the reaction rate without being consumed in the reaction.
(a)
A single displacement reaction is represented by 2NaCl + X-------> 2NaX + Cl2
Which of the following could be X?
Br
F
I
The pH of a solution is 3. It’s [OH-] concentration is ……………………..
1 X 10-3 M
3 M
1 X 10-11 M
