Showing 1–24 of 35 results

Absolute Expansion Of Mercury Apparatus, Dulong & Petit

Description

To determine the co-efficient of absolute expansion of mercury. Glass tubes with vertical limbs contained within glass jackets approx. 460 x 25 mm height x diameter are closed by bungs and fitted with inlet and outlet tubes. Upper ends of these vertical limbs are angled on emergence from the jackets to produce two short, adjacent limbs placed against a silvered glass scale 0 to 12 cm x 1 mm. Mounted on stand 610 x 230 mm, height x width. Overall height 750 mm approx. supplied without mercury.

Aluminum Calorimeter, with wooden box

Description

Polished aluminum container placed in an outer wooden case with thermometer, plastic top fitted with two terminals for heating coil and a hole for thermometer.

Ball & Ring GRAVESANDE

Description

Gravesende's mounted in rod with handle, ball with chain. Cold ball passes through the ring but does not pass when heated.

Ball & Ring seperate

Description

Heavy duty, both ball and ring are mounted on separate handles. When cool, the 25 mm brass ball passes easily through the matching brass ring; when hot, it won't go through.

Ball & Ring with stand

Description

Gravesende's ring mounted on tripod stand, ball with chain. Cold ball passes through the ring but does not pass when heated.

Bar & Gauge

Description

To illustrate expansion of metal on heating and contraction on cooling, with steel bar of length 100 x 10 mm and plated brass gauge with a cutout to just accommodate the bar and two holes through which the bar passes when cold.

Bar Breaking Apparatus

Description

A heavy cast iron stand slotted to carry a stout iron bar, with ten cast iron breaking bars. Comprising a heavy cast iron frame 340 x 120 x 100 mm with slotted end pillars to carry a stout iron bar. The bar is threaded at one end for a large tensioning nut and has holes at the other end to accommodate the cast iron breaking bars. Supplied complete with ten breaking bars.

Bi Metallic Strip

Description

Demonstration Apparatus for Illustration of Thermoexpansion. A 12 V Halogen bulb is fitted below the bi-metallic strip. When heated the strip bends upward and breaks the circuit.

Block Calorimeter

Description

Metal, for experiments on specific heat of different metals, cylindrical metal blocks 1 Kg ± 2%. Each block has a central hole for a special immersion heater and an offset hole for Thermometer.

Calorimeter copper

Description

Copper calorimeter 75 x 50 mm with felt insulation, outer vessel of 100 x 65 mm size with a plastic lid having holes for thermometer and stirrer. A thermometer holder is fixed to the outer vessel. Complete with stirrer.

Calorimeter Set

Description

Consisting of a joint less copper calorimeter 75 x 50 mm on rubber supports, spun outer copper vessel of 100 x 75 mm diameter copper lid for outer vessel with central tubule for thermometer and slit for copper stirrer with a looped copper stirrer for the inner vessel.

Calorimeter Stirrer, Aluminium

Description

Size 150 x 48 mm, 3 mm wire, with plastic handle at upper end of stirrer and loop at bottom. In 3 mm aluminium wire, with plastic handle at upper end of stirrer and loop at bottom. 150 x 48 mm .

Calorimeter Stirrer, Copper

Description

Size 150 x 48 mm, 3 mm wire, with plastic handle at upper end of stirrer and loop at bottom. In 3 mm copper wire, with plastic handle at upper end of stirrer and loop at bottom. 150 x 48 mm .

Calorimeter, Electric

Description

Double-Wall Calorimeter with 1.5 ohm heating coil and 4 mm standard terminals for electrical connections. Complete with insulated stirrer and single-hole rubber stopper. Operates on 6-V DC. Instructions included.

Calorimeter, Joule’s

Description

Nickel plated copper calorimeter of 50 x 75 mm lagged and enclosed in an outer vessel of 75 x 100 mm size, with cover having terminals, a heating coil suitable for 3 – 6 V supply and holes for thermometer and stirrer. With stirrer but without thermometer.

Charle’s Law Apparatus

Description

To determine co-efficient of expansion of a gas at constant pressure. A glass U-tube with a bulb and stopcock at one end, the other limb being open. An outlet tube from the bottom of the U tube passes through a rubber bung and has a stopcock at the end. The stem below the bulb is graduated 3 x 0.1 ml. An inlet tube with a mohr clip also passes through the bung. A glass water jacket encloses the U tube. All glass parts made of borosilicate glass requires only 20 ml mercury, which is not included.

Charle’s Law Kit

Description

A glass U-tube of 10 mm diameter the shorter limb of which has a stopcock near top and the longer limb can take a plastic tube. A scale is provided and can be attached to the shorter limb With red indicator oil but without 2000 ml tall form beaker which acts as a reservoir.

Compound Bar

Description

Brass and iron, 200 x 25 mm, reverted, with wooden handle.

Conductivity Appratus Ingen – Hauzs

Description

Consists of 5 metal rods of different materials having equal lenghts mounted in sheet metal box 150 x 90 x 100mm with corks. Metal rods 150 x 3 mm length x diameter, one each of aluminium,brass, copper, lead and iron, embedded along one side of a metal tank size 150 x 90 x 100 mm length x width x height.

Constant Pressure Air Thermometer

Description

Jolly's thermometer bulb connected via a 3-way stopcock to mercury tube. Sliding indicator on right hand limb with reservoir sliding on vertical clamping rod. Metal vessel to surround the bulb. Mounted on wooden stand, height 740 mm. All glass parts except reservoir are made of borosilicate glass.

Constant Volume Air Thermometer

Description

A metal stand fitted with 0-100 cm x 1 mm vertical wooden scale and supporting a mercury reservoir sliding on a metal rod. An air thermometer bulb fitted to a bracket can be attached to the other rod at either of two positions. With U-shaped base. Complete with 1 meter rubber tubing to connect reservoir to the bulb. Supplied without mercury.

Copper Calorimeter, with wooden box

Description

Copper calorimeter of 75 x 50 mm resting on felt pad inside wooden polished box provided with a brass nickel plated thermometer holder and copper stirrer.

Expansion Apparatus

Description

Two cast metal uprights, height 18 cm, fitted with two nickel plated rods supporting expansion bar of length 38 cm. Expansion bar is fixed to one upright and moves a pointer on the other, when heated With scale reading 0 to 90°, supplied with one each, aluminium, brass and iron expansion bars. Comprising two cast­metal uprights linked by a pair of parallel plated metal support rods and supporting an expansion bar at the top. Supplied with expansion bars. Comprising two cast-iron uprights, height 18 cm linked by two nickel plated rods supporting on expansion bar, length 38 cm fixed to one upright and resting on a friction pointer placed at the other. Supplied with scale reading 0 to 90 deg and one each of aluminium, brass and iron expansion bars.

Expansion of Liquids Apparatus

Description

Comprising five removable glass tubes in a sliding frame and supported in a water trough. For demonstrating the different thermal expansions of various liquids. Comprising five glass tubes in a frame and supported in a water trough. The frame has a special sliding arrangement with clips to hold glass bulbs with tubes. The bulbs can be easily removed and fixed and have funnel formation on top for easy filling.