e1s2kat26
2021-02-19
The heat capacity of object B is twice that of object A.Initially A is at 300K and B is at 450K. Thy are placed in thermalcontact and the combination is isolated. The finaltemperature of both objects is :
A)200K
b)300K
c)400K
d)450K
e)600K
Maciej Morrow
Skilled2021-02-20Added 98 answers
What if we add heat Q to a certain object, causing its temperature to rise by the specified amount? T. The following definition of this object's heat capacity, C
SI unit :
CA=
CB=
Onsolving we get
Jeffrey Jordon
Expert2021-10-01Added 2605 answers
So, we have
is the temperature change
The heat that object A transfers per unit mass is represented by;
where;
ca is the item A's specific heat capacity.
According to its mass, the item B transfers the following amount of heat:
where;
cb is the specific heat capacity of object B
The heat lost by object B is equal to heat gained by object A
Q(A) = -Q(B)
However, item B's heat capacity is two times that of object A.
The two objects' final temperatures are provided by
=
22+64
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