Question
Two substances, A and B, which are of equal mass but at different temperature, come into...
Two substances, A and B, which are of equal mass but at different temperature, come into thermal contact. The specific heat capacity of substance A is twice the specific heat capacity of substance B. What is the final temperature of both substances when they reach thermal equilibrium? (Assume no other heat loss other than the thermal transfer between the substances.)
Homework Answers
Answer #1
Answer : T = (2T1 + T2)/3
Not the answer you're looking for?
Similar Questions
Two substances, A and B, initially at different temperatures, come into contact and reach thermal equilibrium....
Two substances, A and B, initially at different temperatures,
come into contact and reach thermal equilibrium. The mass of
substance A is 6.07 g and its initial temperature is 20.8 ∘ C . The
mass of substance B is 25.0 g and its initial temperature is 52.3 ∘
C . The final temperature of both substances at thermal equilibrium
is 46.6 ∘ C . If the specific heat capacity of substance B is 1.17
J/g ⋅ ∘ C , what...
Two substances, A and B, initially at different temperatures, come into contact and reach thermal equilibrium....
Two substances, A and B, initially at different temperatures,
come into contact and reach thermal equilibrium. The mass of
substance A is 6.11 g and its initial temperature is 20.8 ∘C. The
mass of substance B is 25.9 g and its initial temperature is 52.1
∘C. The final temperature of both substances at thermal equilibrium
is 46.5 ∘C.
If the specific heat capacity of substance B is 1.17 J/g⋅∘C,
what is the specific heat capacity of substance A?
Two substances, A and B, initially at different temperatures, come into contact and reach thermal equilibrium....
Two substances, A and B, initially at different temperatures,
come into contact and reach thermal equilibrium. The mass of
substance A is 6.40 g and its initial temperature is 20.9 ∘C. The
mass of substance B is 25.8 g and its initial temperature is 52.4
∘C. The final temperature of both substances at thermal equilibrium
is 47.0 ∘C.
I
If the specific heat capacity of substance B is 1.17 J/g⋅∘C,
what is the specific heat capacity of substance A?
Which statement is wrong? 1. Temperature measures the average kinetic energy of random motion, but not...
Which statement is wrong?
1. Temperature measures the average kinetic energy of random
motion, but not other kinds of energy.
2. When the same amount of heat produces different changes in
temperature in two substances of the same mass, we say that they
have different specific heat capacities.
3. Each substance has its own characteristic specific heat
capacity.
4. Different substances have different thermal properties due to
differences in the way energy is stored internally in the
substances.
5. Adding...
A block of copper has a mass of 100 kg and an initial temperature of 900...
A block of copper has a mass of 100 kg and an initial
temperature of 900 K. Copper can be modeled as an incompressible
substance with a specific heat capacity of 0.4 kJ/kg-K.
a.) The copper block is dropped into a large lake at 300 K and
allowed to come to thermal equilibrium. How much entropy is
generated (kJ/K)?
b.) If a reversible heat engine were connected between the lake
and the copper block and operated until the temperature of...
Two copper blocks, each of mass 1.74 kg, initially have different temperatures,t1 = 18° C and...
Two copper blocks, each of mass 1.74 kg, initially have
different temperatures,t1 = 18° C and
t2 = 30° C. The blocks are placed in contact
with each other and come to thermal equilibrium. No heat is lost to
the surroundings.
(a) Find the final temperature of the blocks.
°C
Find the heat transferred between them.
J
(b) Find the entropy change of each block during the time interval
in which the first joule of heat flows.
?S1
= J/K...
The same heat transfer into identical masses of different substances produces different temperature changes. Calculate the...
The same heat transfer into identical masses of different
substances produces different temperature changes. Calculate the
final temperature in degrees Celsius when 1.50 kcal of heat enters
1.00 kg of the following, originally at 15.0°C.
a) water ____°C
b) concrete ___ °C
c) steel ___°C
d) mercury___ °C
1. A hot lump of 46.2 g of iron at an initial temperature of 77.9 °C...
1. A hot lump of 46.2 g of iron at an initial temperature of
77.9 °C is placed in 50.0 mL of H2O initially at 25.0 °C and
allowed to reach thermal equilibrium. What is the final temperature
of the iron and water given that the specific heat of iron is 0.449
J/(g·°C)? Assume no heat is lost to surroundings. 2.When 1422 J of
heat energy is added to 40.8 g of hexane, C6H14, the temperature
increases by 15.4 °C....
When a plastic rod and a metal rod removed from the freezer (same initial temperature) are...
When a plastic rod and a metal rod removed from the freezer
(same initial temperature) are touched, metal rod is felt cooler
than the plastic rod. Why?
2. Does heat flow depend on temperature of the two substances or
temperature difference between the substances?
3. Which can be easily heated and cooled? (a) Substance of
specific heat capacity = 300 J/kg. C, (b) substance of specific
heat capacity = 900 J/kg. C
An unknown substance has a mass of 0.125 kg and an initial temperature of 79.8°C. The...
An unknown substance has a mass of 0.125 kg and an initial
temperature of 79.8°C. The substance is then dropped into a
calorimeter made of aluminum containing 0.285 kg of water initially
at 21.0°C. The mass of the aluminum container is 0.150 kg, and the
temperature of the calorimeter increases to a final equilibrium
temperature of 32.0°C. Assuming no thermal energy is transferred to
the environment, calculate the specific heat of the unknown
substance.
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 3 minutes ago
asked 16 minutes ago
asked 18 minutes ago
asked 22 minutes ago
asked 27 minutes ago
asked 36 minutes ago
asked 42 minutes ago
asked 47 minutes ago
asked 48 minutes ago
asked 54 minutes ago
asked 1 hour ago
asked 1 hour ago