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Experiments of HEAT

Searls Thermal Conductivity

INSIF P-900
Thermal Conductivity by searls Method OBJECT: TO DETERMINE THE COEFFICIENT OF thermal conductivity of a metal by using Searls apparatus
* A) App. 12” x 1” ROD
* B) COPPER ROD 12” X 3/4” in box
P-900A
* It has a copper bar of 25 mm x 300 mm (dia x length) with
* a steam jacket heater at one end to be supplied from a steam boiler,
* and a copper water cool spiral at the other end.
* The bar has tubes for inlet of water and for thermometers.
* Fitted in a superior quality wooden case,
* with felt for thermal insulation.
* A) Apparatus 12” x1
* B) Copper Rod 12” x3/4” in box
* provided with constant level tank &
* neccessory accessory four thermometers

PROCEDURE: Steam is flown from one end & comes out other end on the same side , thus heats up one end & at the other end steady flow of water from constant level tank is maintained

CALENDER AND BARNS APPARATUS

P-695 INSIF
* It has horizontal corning glass tube open at both ends inside of which a heating element coil about 40 cm long made of Nichrome wire , is fitted operatable 6V DC.
* Polished wooden base: It is encased in it with a lined felt & proved with a hinged cover.
* Terminals: are brought at each end of the tube for the electrical supply.
* The horizontal tube: is connected either by rubber tube or rubber cork to the inlet & outlet system, each having a short vertical extension to accommodate a thermometer supplied .
* With constant level tank:(100 x 75 mm dia) fitted with clamp on a tripod stand for maintaining water level


CALORIMETER COPPER

P-697 INSIF
* It consists of a rectangular wooden box fitted with thermometer holder.
* Packed with felt for thermal insulation.
* With copper stirrer
Size :
(i) 2" x 3"
(ii) 3" x 4"


CALORIMETER JOULES

P-698A INSIF
* it consists of a copper vessel of fitted in wooden Box ,
* fitted with Bakelite lid with hole for thermometer &
* stirrer made of copper
sizes:- .
(i) Copper Vessel 2" x 3"
(ii) Copper Vessel 3" x 4


CLEMENT & DISORMIES APPARATUS

P-708 INSIF
Exp: For determining the ratio of the specific heats of a gas.
* Glass bottle: 10 liters capacity which is fitted in a wooden box.
* The neck of the bottle is fitted with a metal cap.
* The cap is fitted with a bent tube with stop-cock for connection to a pump which is fitted to the side of the wooden box.
* A stop cock for opening to air and a bend for connection to the manometer is provided.


METALLIC CUBE

P-713 INSIF
Exp: Used as sinkers or for specific gravity measurements.
Set of six different metals- brass, alu., copper, zinc, iron & lead.
i) 3/4” with hole for thermometer
(ii) 1" without hole
(iii) 1" with hole for thermometer


METALLIC CYLINDER

(Size : 1" x 12") P-714 INSIF
* Set of six different elements in cylindrical form-
* BRASS, ALUMINUM,COPPER, ZINC,IRON & LEAD.


HYPSOMETER

P-745 INSIF
* a copper boiling vessel with a steam jacketed in a tube.

 


LATENT HEAT OF STEAM APPARATUS

INSIF P-771
* Comprises a thick brass calorimeter,
* a bung with steam inlet & outlet glass tubes,
* a felt cover,
* complete with 2 litres tin plate boiler
* with bung to take the steam tube which connects to the calorimeter,
* the assembly is kept on a vertical wooden stand with a platform for calorimeter

LEES AND CHARTON APPARATUS

INSIF P-776
* Exp : For determining the relative conductivity of thin layers of material.
Consists of cylindrical slab of brass 11 cms. in diameter and 10.5 mm thick. On this rests a 5 cms. deep hollow cylinder of the same diameter with inlet and outlet tubes for steam.
* Both the cylinders Have radial holes for insertion of thermometers.
* The material Under test is placed between the two cylinders.
* The apparatus is suspended by strings attached to the lower cylinder.
* Without thermometers.

LINEAR EXPANSION APPARATUS

INSIF P-777 (HORIZONTAL PATTERN) * it consists of a steam jacket(brass pipe) 50 cm long & 2.5 cm dia with inlet & outlet tubes for steam & opening for a thermometer fitted with speedometer which reads up to 0.01 mm.
* The exact setting at which it contacts the rod may be indicated by using an electric contacting circuit, such as a dry cell or buzzer.
* Complete with 3 test rods.
A) Vertical Linear: brass pipe
* Same as above, but steam jacket mounted on vertical stand..

Newton law of cooling App

INSIF P-831
* EXP: to study the relationship between temp Of a body & time as it cools by radiating heat.
* A) School Type outer tank made of Brass
* A (i) school type outer tank made of G.I.
* It consists of two copper calorimeters 2” x 1” resting inside a trough This stands in an outer tank having a wooden top with two holes for thermometers.
* Supplied w/o thermometers, But with stirrers.
B) University Type Brass
* Comprising two units, each having a double walled vessel brass nickel plated with Bakelite cover through which is suspended a 3" x 2" calorimeter.
* A second inner covering protects the top of the calorimeter from heat losses. The angular spaces between the double walled vessels are connected by T-Tubes, which enable water at same temperature to be kept circulating through them.

PULLINGER APPARATUS

INSIF P-855
* Consisting of a 1/2 meter long brass tube, with inlet and outlet tubes for steam,and opening for thermometer,
* supported in seasoned wood frame,
* complete with 3 metal rods.
* Without Spherometer and Thermometer.

RING & BALL APPARATUS

INSIF P-884A
OJECT: TO DETERMINE THE EXPANSION OF METALS , WHEN HEATED
A)Brass Ball with handle
* A Brass ball of 18 mm dia secured to a chain &
*a brass ring is mounted on a brass rod with wooden handle
* B)With Stand

C)Ring&GaugeComprising iron bar 10.8 cm long x 11.5 mm dia mounted at its mid point on a rod fitted with wooden handle, and a brass gauge 150 x 28 mm ,

To determine the coefficient of apparent expansion of a liquid with a weight thermometer

P-080 INSIF

Apparatus required::
*
weight thermometer,
* balance with weight box,
* thermometer,
* beaker container water,
*   hot plat

To determine the coefficient of real expansion of a liquid (water) by up thrust method

P-081 INSIF

Apparatus required:
*
A chemical balance,
* weight box,
* glass bulb ,
* thin thread,
* thermometer,
* beaker ,
* small bench /stand

To determine the specific heat of liquid (glycerin) by the method of cooling.

P-082 INSIF

Apparatus required:
* A double walled vessel with liquid.,
* two small calorimeters identical in all respects,
* two thermometers,
* physical balance ,
* weight box,
* glycerine,
* hot plate

To determine the latent heat of steam by Joly’s steam calorimeter

P-083 INSIF To determine the latent heat of steam by Joly’s steam calorimeter.

Apparatus required:
* Joly’s steam calorimeter,
* chemical balance,
* thermometer,
* a small copper piece,
* a piece of fine copper wire ,
* boiler,

To determine the value of Y(the ratio of two specific heats of gas) for air by clement and Desorme’s method

P-084 INSIF.

Apparatus required:
* A large flask of capacity near about 5 or 10 ltrs,
* liquid manometer,
* a compression pump or air below,
* sulphuric acid,
* top lid of flask with three outlets

o determine the value of J, the mechanical equipment of heat by Searle’s apparatus.

P-085 INSIF

Apparatus required:
* Callender & barn’s  app.,
* constant heat water arrangement,
* A.C. Transformer,
* A.C. voltmeter and Ammeter,
* two mercury themometers,
* stop watch,
* graduated cylinder,
* beaker,
* weight box,
* physical balance,
* connection wire

To determine the mechanical equipment of heat by using calendar and Berne’s constant flow calorimeter

P-086 INSIF .

Apparatus required:
* step down transformer,
* Rheostat
* Joule’s calorimeter,
* an ammeter,
* a voltmeter,
* a sensitive thermometer,
* physical balance,
* weight box,
* plug key ,
* connecting wire

To determine the mechanical equivalent of heat (J) with the help of searls conductivity

P-087 INSIF .

Apparatus required:
* Searle’s conductivity app.,
* four sensitive thermometers,
* constant pressure water flow arrangement,
* measuring flask,
* stop watch and
* arrangement for generating steam.

To determined the thermal conductivity of rubber in the form of a tube.

P-090 INSIF

Apparatus required:
* Calorimeter, balance,
* weight box,
* stop watch ,
* thermometer,
* steam boiler,
* graduated cylinder,
* rubber tubing,
* wooden screen,
* vernier microscope

To determine the coefficient of thermal conductivity of glass in the form of a   tube.

P-091 INSIF

Apparatus required: 
* Two given glass tube,
* a wider tube to serve as a steam Jacket,
* constant level water arrangement,
* two sensitive thermometers,
* graduated jar,
* stop watch and
* microscope

To determine the temperature coefficient of resistance for platinum using a platinum resistance thermometer and a calendar and Griffith’ bridge

P92 INSIF

Apparatus required:
* Callender and Griffith’s Bridge,
* platinum resistance thermometer,
* galvanometer,
* connecting wires,
* power supply,
* heating arrangement.

To determine the value of Stefan’s constant

P-093 INSIF .

Apparatus required:
* Stefan’s app.,
* two thermometers,
* sensitive galvanometer,
* stop watch,
* copper flask and
* heater.

To verify Stefan’s law

P-094 INSIF.

Apparatus required:
* battery,
* D.C VOLTMETER 0-10V,
* DC AMMER 0-1 A, 
* Electric bulb 6V,
* Rheostat 100 Ohms

To determine the critical temperature and critical pressure of a gas

P-095 INSIF .

Apparatus required:
* A hard glass tube (cylindrical bulb) in which liquid under test is filled. ,
* A manometer,
* thermostat

To measure temperature with the help of Jolly’s constant volume air thermometer

P-096 INSIF .

Apparatus required:
*olly’s constant volume air thermometer,
* wooden stand ,
* beaker with water,
* mercury

Item has been added to cart. Subtotal $200.

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