Aim:

i) To find the marriage between supplied energy and alter in temp of normal water.

ii) To find the specific high temperature capacity (SHC) of normal water.

Hypothesis:

As time increases so does the temperature because the water is usually exposed to the heated

cable for a longer period of time.

Factors:

The Centered Variable is definitely the temperature in the water, and since the Energy is definitely calculated using temperature this can be a dependent varying as well. The variables are definitely the voltage and current.

Theory:

Energy Supplied by Heater sama dengan Energy Received by Drinking water

Materials:

200ml beaker Linking Wires Thermometer

200ml water Voltmeter Electronic scale

NiCr-Wire Ampmeter POWER Power Supply

Stands out as the Clips Stopwatch

Instructions:

i) Assemble the apparatus as shown inside the diagram. You need to build your immersion heater simply by winding the NiCr-wire around a pencil claim 8 to 10 times.

ii) Take initially measurements from the water incl. its mass and its preliminary temperature.

iii) Place the captivation heater into the water and be on the power supply. Adjust the voltage across the immersion water heater around doze to 15 volts.

iv) Assess and record time, volt quality, current and temperature by regular periods in a ideal table (include uncertainties)

v) Draw the right graph that will enable you to find the precise heat capability of the normal water.

vi) Assess your studies with accepted values intended for water.

Observations:

One can observe the process of diffusion and the normal water changes their color, via clear into a yellowish solution. On one from the poles Pennie starts to collect (Electrolysis).

Effects:

Mass of Beaker = 205, 23 g (0. 205 kg)

Mass of Beaker + Water = 391, 41 g (0. 391 kg)

Mass of Water = 186, 18 g (0. 186 kg)

Specific Heat Capacity of Water (15ЛљC) = 4186 J/kgCЛљ

V (v)

I (amps) capital t (s) Big t (˚C) ∆T (˚C) ∆T / Big t

voltage current time Temp (change in temp. ) Relative doubt of Temperature

В±0, 05 В±0, 005 В± two, 00 В± 0, five

13, 43 you, 42 0 20 0 0, twenty-five

13, 43 1, 40 120 twenty-two, 3 2, 3 0, 022

13, 43 1, 42 240 24, a few 4, 5 0, 020

13, 43 1, 42 360 28, 2 six, 2 zero, 018

13, 43 you, 42 480 30, you 10, you 0, 017

13, 43 1, 40 600 33, 7 13, 7 0, 015

13, 43 1, 42 720 35, eight 15, 8 0, 014

13, 43 1, 42 840 37, 9 seventeen, 9 zero, 013

13, 43 you, 42 960 39, you 19, 1 0, 013

13, 43 1, 42 1080 forty two, 2 twenty-two, 2 0, 011

13, 43 1, 42 1320 43, almost eight 23, eight 0, 011

13, 43 1, forty two 1440 forty five 25 zero, 011

13, 43 one particular, 42 1560 46 twenty six 0, 011

13, 43 1, forty two 1680 47, 1 27, 1 0, 011

13, 43 1, 42 1800 48, you 28, one particular 0, 010

13, 43 1, forty two 1920 49 29 zero, 010

∆V / V ∆I / I ∆t / capital t ∆E as well as E ∆E

Relative concern of Ac electricity Relative concern of Current Relative uncertainness of time Compar. uncertainty of one's

= (∆V / V)+( ∆I as well as I)+( ∆t / t) Absolute uncertainness of Energy

sama dengan E*(∆E / E)

0, 000372 0, 00352 0 0 zero

0, 000372 0, 00352 0, 01667 0, 020560 47, 1

0, 000372 0, 00352 0, 00833 0, 012227 56, zero

0, 000372 0, 00352 0, 00556 0, 009449 64, on the lookout for

0, 000372 0, 00352 0, 00417 0, 008060 73, 8

0, 000372 0, 00352 0, 00333 0, 007227 82, several

0, 000372 0, 00352 0, 00278 0, 006671 91, six

0, 000372 0, 00352 0, 00238 0, 006274 100, a few

0, 000372 0, 00352 0, 00208 0, 005977 109, 5

0, 000372 0, 00352 0, 00185 0, 005745 118, a few

0, 000372 0, 00352 0, 00152 0, 005409 136, 2

0, 000372 0, 00352 0, 00139 0, 005282 145, one particular

0, 000372 0, 00352 0, 00128 0, 005175 154, zero

0, 000372 0, 00352 0, 00119 0, 005084 162, 9

0, 000372 0, 00352 0, 00111 0, 005005 171, almost 8

0, 000372 0, 00352 0, 00104 0, 004935 180, 7

E (J) Ew (J) m*∆T c

= V*I*t

Electrical Energy Provided = m*c*∆T

Energy received by water Specific warmth capacity

0 0 0

2288 2288, 472 zero, 428214 5344, 225084

4577 4576, 944 0, 83781 5462, 985641

6865 6865, 416 you, 340496 5121, 549039

9154 9153, 888 1, 880418 4868, 007007

11442 11442, 36 two, 550666 4486, 028355

13731 13730, 832 2, 941644 4667, 740896

16019 16019, 304 3, 332622 4806, 816975

18308 18307, 776 3, 556038 5148, 363431

20596 20596, 248 four, 133196 4983, 128794

25173 25173, 192 4, 431084 5681, 045992

27462 27461, 664 some, 6545 5900, 024492...

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