Question

A 53.0-g metal weight, heated to 87.50°C, is placed into 191 g
of water at 21.05°C contained in a perfectly insulating thermos
flask. After some time, the temperature inside the thermos flask
stabilizes at 23.80°C.

The *specific heat capacity* of water is approximately 4.18
J/K/g in the temperature range 16°C - 61°C.

Calculate the specific heat capacity of the metal.

Answer #1

since the container is insulated, heat lost by metal = heat gained by water

mass of metal* speciifc heat of metal* temperature difference= mass of water* specific heat of water* temperature difference

metal is at higher temperature than water and hence metal looses to water and water gains heat . Ultimately both will reach a temperature of 23.8deg.c

53*specific heat of metal*( 87.5-23.8)= 191*4.184*(23.8-21.05)

Specific heat of metal = 0.61 J/gm.deg.c

1. A 78.0 g piece of metal at 89.0°C is placed in 125 g of water
at 21.0°C contained in a calorimeter. The metal and water come to
the same temperature at 27.0°C.
- How much heat (in J) did the metal give up to the water?
(Assume the specific heat of water is 4.18 J/g·°C across the
temperature range.)
- What is the specific heat (in J/g·°C) of the metal?
2. A 0.529 g sample of KCl is added...

A 6.40 g sample of iron (specific heat capacity = 0.451 J/g*C)
is placed in a boiling water bath until the temperature of the
metal is 100.0*C. The metal is quickly transferred to 119.0g of
water at 25.0*C in a calorimeter (specific heat capacity of water =
4.18 J/g*C). Determine the final temperature of the water in the
calorimeter (3 significant figures).

A 6.40 g sample of iron (specific heat capacity =0.451 J/g*C) is
placed in a boiling water bath until the temperature of the metal
is 100.0*C. The metal is quickly transferred to 119.0g of water at
25.0*C in a calorimeter (specific heat capacity of water = 4.18
J/g*C). Determine the final temperature of the water in the
calorimeter (3 significant figures).

1. A 74.2-g piece of metal is heated to 89.55 degrees C and
dropped into 52.0 g of water at 23.22 degrees C in a calorimeter
with the heat capacity of 41.0 J/C . The
final temperature of the system is 27.60 degrees C.
a) Assuming that the metal does not react with water and
Cs(H2O) = 4.18 J/g*C , calculate
the specific heat capacity of the metal in
J/g*C
b) Most metals have the same molar heat capacity of...

In an experiment, 22.5 g of metal was heated to 98.0°C and then
quickly transferred to 150.0 g of water in a calorimeter. The
initial temperature of the water was 27.0°C, and the final
temperature after the addition of the metal was 32.5°C. Assume the
calorimeter behaves ideally and does not absorb or release
heat.
What is the value of the specific heat capacity (in J/g•°C) of
the metal?

In an experiment, 25.5 g of metal was heated to 98.0°C and then
quickly transferred to 150.0 g of water in a calorimeter. The
initial temperature of the water was 21.0°C, and the final
temperature after the addition of the metal was 32.5°C. Assume the
calorimeter behaves ideally and does not absorb or release
heat.
What is the value of the specific heat capacity (in J/g•°C) of
the metal?

In an experiment, 26.0 g of metal was heated to 98.0°C and then
quickly transferred to 150.0 g of water in a calorimeter. The
initial temperature of the water was 20.5°C, and the final
temperature after the addition of the metal was 32.5°C. Assume the
calorimeter behaves ideally and does not absorb or release
heat.
What is the value of the specific heat capacity (in J/g•°C) of
the metal?
_________________ J/g•°C

A
47.5 block of an unknown metal is heated in a hot water bath to 100
degrees Celsius. When the block is placed in an insulated vessel
containing 130.0 g of water at 25.0 degrees Celsius, the final
temperature is 28.0 degrees Celsius. Determine the specific heat of
the unknown metal. The Cs for water is 4.18 J/g degrees
Celsius.

A metal sample weighing 72.1 g is placed in a hot water bath at
95.0 oC. The calorimeter contains 42.3 g of deoinized water. The
initial temperature of the water is 22.3 oC. The metal is
transferred to the calorimeter and the final temperature reached by
the water + metal is 32.2 oC.
A. Calculate ∆T for the water (Tfinal – Tinitial).
B. Calculate ∆T for the metal.
C. The specific heat of water is 4.18 J/goC. Calculate the
specific...

What is the mass of a piece of nickel metal if it is heated to
100.0C and placed into 250.0 grams of water at 21.52C in a
calorimeter with a heat capacity of 95.3J/K and the temperature
stabilizes at 25.82C

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 17 minutes ago

asked 22 minutes ago

asked 24 minutes ago

asked 28 minutes ago

asked 34 minutes ago

asked 34 minutes ago

asked 34 minutes ago

asked 46 minutes ago

asked 54 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago