Question

if a stove supplies the same amount of heat to both an iron pan and a copper pan of equal masses, which pan will be at a higher temperature after heating for 5 minutes?

Answer #1

**The question can be
addressed by means of specific heat, which is defined as the amount
of heat energy required to raise the temperature of 1gm of a
substance by 1 ^{o} centigrade.**

**Specific heat of iron is
0.450J/g ^{o}C and that
of copper is 0.385
J/g^{o}C. Thus for the same masses of iron and copper pan
heated for the same time, more amount of energy is required for
iron than that of copper (Since specific heat of iron is more
than that of copper). As a result of which after 5min copper
pan will be at a higher temperature.**

How much heat must be supplied to a 500 g iron pan to increase
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c= 0.11 cal/g/OC

A stove top heating element (electric heating) gives off heat at
a rate of 2250 W. If you place an iron skillet that's full of water
on this heating element then how long would it take to heat both up
from 22°C to 83°C? The iron skillet has a mass of 1.5 kg and a
specific heat of 450 J/kg • K. The water has a mass of 1.1 kg and a
specific heat of 4186 J/kg • K.

How much heat must be supplied to a 500.0g iron pan to raise its
temperature from 20.0Cto 373.0K?

A 4-mm thick, 20cm diameter cast iron frying pan (K =
55 W/mK) is heated on a traditional stovetop range. Under certain
stovetop settings, the temperature on the bottom surface of the pan
(in contact with the heating element) is measured to be
160°C and that on the inside of the pan (cooking
surface) is 150°C. Using the heat diffusion
equation, find an expression (specific solution) for the
temperature distribution across the thickness of the pan.

150 grams of boiling water (temperature 100°C, heat capacity 4.2
J/gram/K) are poured into an aluminum pan whose mass is 970 grams
and initial temperature 25°C (the heat capacity of aluminum is 0.9
J/gram/K). (a) After a short time, what is the temperature of the
water?
(b) What simplifying assumptions did you have to make?
The thermal energy of the aluminum doesn't change.
Energy transfer between the system (water plus pan) and the
surroundings was negligible during this time.
The...

If equal masses of the following substances aborb the same
amount of heat which will experience the most significant change of
temperature?
Answer choices:
SiO2(s)
NaCl(s)
H2O(l)
N2(g)
Cu(s)

Equal amounts of heat are added to equal masses of mercury and
ice at the same initial temperature. Which substance will have the
higher final temperature, Mercury or ice?
How much greater will that temperature change be than the
temperature change of the other substance? larger ΔT/smaller ΔT
=

You take a 150.485 g piece of copper
and
heat it over a
Bunsen burner. After a few
minutes of heating you place
the
heated
copper into 500 g of water at
25.00
̊C.
After
a
while you measure
the
temperature of
the water and find
that it is 45.32
̊C.
What was
the
temperature of the metal before
you put it in the water? The specific
heat of copper is
0.385
J/(g∙ ̊C).
Assume no energy was lost.

Two containers, A and B, contain equal amount of the same ideal
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initially. Container A is fitted with a moveable
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equal amount of heat is added to both systems. When heat is added
to container A, it expands. How do the final temperatures of the
two systems compare and why?
a) System A has a final higher temperature than B due...

You place identical pots on the stove and heat them equally. Pot
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pots start out at 25 degrees C.
a) If you heat both pots of water until they boiled, which pot
will boil first? Why?
b) When both pots are boiling, what is the temperature in pot
A?

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