Question

A 2.52g lead weight, initially at 10.1?C, is submerged in 7.94g of water at 52.3?C in an insulated container.

What is the final temperature of both substances at thermal equilibrium?

Answer #1

Specific heat of water = 4.184
**J/g ^{o}C**

Specific heat of lead = 0.160
**J/g ^{o}C**

At thermal equilibrium let us consider the temperature of both
the substance are t ^{o}C.

Here heat absoebed by lead = - (Heat released by water)

Heat absoebed by lead = 2.52g X 0.160
**J/g ^{o}C** X (t -
10.1)

Heat released by water = 7.94g X 4.184
**J/g ^{o}C** X (t -
52.3)

So, 2.52g X 0.160 **J/g ^{o}C** X (t -
10.1)

t = 51.79 ^{o}C

At thermal equilibrium let us consider the temperature of both
the substance are 51.79 ^{o}C.

A 2.53 g lead weight, initially at 10.1∘C, is submerged in 8.17
g of water at 52.4 ∘C in an insulated container. (this is all that
was given). What is the final temperature of both substances at
thermal equilibrium?

A 2.29 g lead weight, initially at 10.6 ∘C, is submerged in 8.24
g of water at 52.6 ∘C in an insulated container. What is the final
temperature of both the weight and the water at thermal
equilibrium?

A 2.60 g lead weight, initially at 10.7 ∘C, is submerged in 8.18
g of water at 52.0 ∘C in an insulated container What is the final
temperature of both the weight and the water at thermal
equilibrium?

A 2.28 g lead weight, initially at 11.1 ∘C, is submerged in 8.15
gof water at 52.8 ∘C in an insulated container. What is the final
temperature (degrees Celsius) of both the weight and the water at
thermal equilibrium?

A 2.76 g lead weight, initially at 10.7 ∘C, is submerged in 8.17
g of water at 52.6 ∘C in an insulated container.
What is the final temperature of both the weight and the water
at thermal equilibrium?
Express the temperature in Celsius to three significant
figures.

A
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into 63.2g of water at 27.1 degrees C in an insulated container.
What is the final temperature of both substances at thermal
equilibrium?

A 31.7 g wafer of pure gold initially at 69.7 ∘C is submerged
into 64.1 g of water at 27.4 ∘C in an insulated container.
What is the final temperature of both substances at thermal
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A 31.5 g wafer of pure gold initially at 69.8 ∘C is submerged
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What is the mass of the silver block?

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