# Lab Report

User Generated

vSenapb

Science

## Description

the instructions are attached with the data base.

### Unformatted Attachment Preview

Purchase answer to see full attachment
User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.

hello,here is the answer,i believe this will really help and in case you
have a question just ask,from the values you obtained from the
experiment just replace in the formulas i have written to obtain the
summaries and data analysis.kindly find the attached copy

THE SPECIFIC HEAT CAPACITY
OBJECTIVES
This are activities that one intend to do and how do them. The aims of the experiment that
one is undertaking.
The objective of this experiment is to test various specific heat capacity of different metals.
INTRODUCTION
The heat per unit mass that raises temperature by one degree Celsius is called specific heat
capacity. The relation between heat and temperature is best described by thermodynamics.
Thermodynamics is a field of physics where relationship between heat and temperature is
shown and their relation to energy and work. Some quantities to be put in consideration are
pressure, temperature, volume, internal energy, entropy of various materials and in this case
the metals. The experiment is oriented on the flow of energy from one source to the other.
There is a slight difference between heat and temperature .Heat is energy transfer from one
body to the other due to their temperature difference. It can be in terms of medium that will
be termed as conduction or through use of remote bodies by radiation, also through liquids or
the electrolytes by means of convection. Temperature on the other hand is the comparative
measurement on hot or cold surfaces of the metal. Temperature dictate direction of flow of
heat and the rate of the flow. Work done in the system as the heat transfers from one point to
the other contribute to additional heat to the system.
Heat being a form of energy can be represented in units of work. The units are based on heat
effect on changing temperatures in universal substances. As a form of energy its units are
Joules (J), other forms may include British thermal unit and calorie in metric unit is used.
Calorie is heat required to raise temperature of water by one degree Celsius (ie.from14.515.5).
Heat required to give rise in temperature of different substance having different mass is
different .This is seen wen for example an insulated beaker having 100g and its temperature
is 45 degrees Celsius and we need it to be raised to 55 degrees Celsius, water having 100
degrees Celsius is added to boost the temperatures. As a result the following metals would
react in this manner;
Substance at 100 degree Celsius
Water
Aluminium
Copper

Mass in grams
10
46
108
328

From the above table each of the material for the same change in temperature different
masses are required. The highest being 328g and lowest 10g.The heat that rises the
temperature of a unit mass of a given amount of substance by one degree Celsius is called
heat capacity. It is denoted by C. It varies from one substance to the other. The unit of
measurements is joule/kelvin or kilogram metre /kelvin. Heat capacity I therefore the ratio of
heat denoted by Q to the temperature rise denoted by ∆T

C=Q/∆T
In this case the heat is dependent of the mass m then the heat capacity is referred to us the
Specific heat capacity. It is denoted by c. The units are J/Kg/K.
c=Q/M∆T=heat capacity/mass
Basically the specific heat is the heat capacity per unit mass of substance. It is heat in calorie
that raises temperature of 1 gram of material by 1 degree Celsius.
The following are some of heat capacities of different of different substances. Water has the
highest specific heat capacity of 1.000.
Substances

Heat capacity(Cal/g2
C)

Substances

Air( constant, pressure)
Air(constant, volume)
Aluminium
Brass
Copper
Ether
Glass (crown)
Glass
Gold
Ice 0C
Alcohol

0.237
0.168
0.22
0.090
0.093
0.56
0.16
0.12
0.031
0.5
0.65

Iron
Nickel
Platinum
steel
tin
zinc
turpentine
water
Mercury

Heat
capacity(Cal/g2
C)
0.11
0.031
0.109
0.0323
0.118
0.055
0.092
0.46
1.000
0.033

Method of mixtures is used to determine the thermal constants required. This method implies
that when hot substances are mixed with other that are cold, they lose heat which is in return
absorbed by the cold substance hence raising it tempe...

### Review

Anonymous
Really useful study material!

Studypool
4.7
Indeed
4.5
Sitejabber
4.4