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WorksheetsScience S.A 3 Reviewer
Total questions: 15
Worksheet time: 23mins
Three cups with the same amount of water are in a room with a temperature of 32°C. Cups X, Y, and Z have initial temperatures of 70°C, 60°C and 50°C, respectively. Which cup will most quickly reach its final temperature?
Cup X
Cup Y
Cup Z
None of the above
In a closed system, what will happen to the objects in the image above?
Increase in temperature
Heat energy transfer
Increase in energy
Nothing will happen
A 10°C water was boiled until it reached the boiling point. What happens to its total kinetic energy as its temperature increases?
It remains the same
It increases
It decreases
It is doubled
What is Thermal Equilibrium?
It occurs when two or more systems have different temperature
It occurs when two or more systems have the same temperature
It happens when there is heat transfer on one system only
It happens when there is no heat transfer between 2 systems
For thermal equilibrium to happen, what must be the condition of Object A, Object B and Object C?
Only Object A and Object B must have the same temperature
Only Object B and Object C must have the same temperature
Objects A, B, and C must have the same temperature
Only Object A and Object C must have the same temperature
What happens to the entropy of ice as it melts into water?
It increases
It decreases
It remains the same
It is doubled
A heat engine has a hot reservoir of 400 K and a sink of 100 K. What is its ideal efficiency?
0.25
0.50
0.75
0.90
How much work is done on the system by absorbing 60 J of heat causing a change in internal energy of 6 J?
66 J
-66 J
-54 J
54 J
