WorksheetsThermo Chem Review Quiz 1
Total questions: 10
Worksheet time: 14mins
Which of the following best describes temperature?
a measure of the average kinetic energy of the particles in a sample of matter
heat absorbed or released in a chemical or physical change
heat energy
energy of change
The higher the kinetic energy of the particles in a sample of matter,
the lower the temperature will be.
temperature is not affected.
the higher the temperature will be.
What units are used to measure heat and energy?
meters or kilometers
joules or kilojoules
kelvin or celsius
liters or kiloliters
What is defined as the heat required to raise the temperature of 1 g of a substance by 1 °C ?
heat energy
heat of formation
specific heat
heat capacity
Heat gained or lost = (mass)(specific heat)(change in temperatue) Q = mCprT
How much energy does a copper sample absorb as heat if its specific heat is 0.384 J/g·°C, its mass is 8.00 g, and it is heated from 10.0°C to 40.0°C?
-92.2 J
92.2 J
-0.0016 J
0.0016 J
Heat gained or lost = (mass)(specific heat)(change in temperatue) Q = mCprT
How much energy is lost by 20 g of gold when it is cooled from 35°C to 25°C? The specific heat of gold is 0.13 J/g·°C.
-26 J
26 J
17500 J
0.0006 J/g·°C
Activation energy is
the energy required to start a reaction.
free energy.
the heat of reaction.
the net energy required to turn products into reactants.
Which statement describes the following reaction? H2 + O2 Ú H2O + 314.15 kJ
It is exothermic and energy is absorbed.
It is endothermic and energy is released.
It is exothermic and energy is released.
It is endothermic and energy is absorbed.
The moon’s surface becomes hot during the long lunar day because the sun transfers heat to the moon. This heat transfer is accomplished almost entirely through the process of —
convection
conduction
refraction
radiation
A man who was sleeping wakes up because he hears the smoke alarm go off in his house. Before opening the bedroom door, the man feels the door to see whether it is warm. He is assuming that heat would be transferred through the door by —
conduction
radiation
convection
compression
