As you sit on the stool in the science lab, you place your hand on the metal leg of the stool and the wooden counter top. The science lab has been maintained at 18o (degree) C for the past week. Apply the concept of thermal equilibrium to identify the correct statement.
Energy transfer
The flow of energy from one region to another region is referred to as energy transfer. Since energy is quantitative; it must be transferred to a body or a material to work or to heat the system.
Molar Specific Heat
Heat capacity is the amount of heat energy absorbed or released by a chemical substance per the change in temperature of that substance. The change in heat is also called enthalpy. The SI unit of heat capacity is Joules per Kelvin, which is (J K-1)
Thermal Properties of Matter
Thermal energy is described as one of the form of heat energy which flows from one body of higher temperature to the other with the lower temperature when these two bodies are placed in contact to each other. Heat is described as the form of energy which is transferred between the two systems or in between the systems and their surrounding by the virtue of difference in temperature. Calorimetry is that branch of science which helps in measuring the changes which are taking place in the heat energy of a given body.
8. As you sit on the stool in the science lab, you place your hand on the metal leg of the stool and
the wooden counter top. The science lab has been maintained at 18o (degree) C for the past week. Apply the concept of thermal equilibrium to identify the correct statement.
a) The leg of the
stool’s
temperature
is less than
18o (degree) C.
b) The wooden
counter top’s
temperature is
greater than
18o (degree)C.
c) The leg and
the counter
top are both at
a temperature
of 18o (degree) C
d) Thermal
equilibrium
predicts that
cold will flow
to the object
with the lowest
specific heat
capacity.
e) It is impossible
to determine
which object
will be cooler
without
knowing their
specific heat
capacities.
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