Academic Honesty Pledge
I understand that students are expected to refrain from all forms of academic dishonesty
as defined in the college policies and as explained and defined by college policies and
procedures and directions from teachers or other college personnel.
By signing this cover page I am confirming that the work presented here, including all
the figures, tables, calculations, data and text, is mine and mine only.
I hereby state that all work submitted in this report is mine and solely mine.
Signature:
Note: Only reports that include a signed cover sheet will be graded.
1
2
3
Objective of Evaluation
Report presentation (must be typed)
Observation and Analysis (Part I)
Observation and Analysis (Part II)
Total
HCT PHY1203 PHYSICS II LAB 1 202210
Max. marks
5
65
30
100
Marks obtained
1 Objective:
To determine the specific heat of a solid body.
Background
The specific heat of a substance is the quantity of heat necessary to raise a unit mass of the
substance by a unit temperature difference. When a heat interchange takes place between two
bodies initially at different temperatures, the quantity of heat lost by the hot body is equal to that
gained by the cold body, and some intermediate equilibrium temperature is finally reached. This is
true provided no heat is gained from or lost to the surroundings. In this case, we can apply the
principle of conservation of energy.
Heat lost by hot body = Heat gained by cold body
Experimental setup and theory
In this experiment, a solid sample of known mass (ml) is heated to a certain temperature near the
boiling point of water (Ts). It is then quickly transferred to a calorimeter of known mass (mcal),
which contains cold water of known temperature (Tw) and mass (mw). It should be assumed that
temperature of calorimeter is the same as (Tw). When the solid sample and the calorimeter
(including water) come to thermal equilibrium, the final temperature (T;) is noted. It is assumed that
the heat loss to the thermometer is negligible and if the heat exchange with the environment is kept
small, then the heat lost by the solid sample (-Qsol) is equal to the total heat gained by the
calorimeter (Qcal) and the water (Qw). Thus, applying the principle of conservation of energy to our
isolated system (the net heat gained by the system is zero):
Q=mcAT
Qw-Q sol+Qcal=0
W
mwcw T-Tw-m sol sol Tsol-Tf+m calcat (T-Tw=0
W
f
W
C sol
mwcw Tf-Tw+mcal Ccal Tf-Tw
W
msol (Tsol-Tr
If we ignore the heat gained by the calorimeter, the equation becomes:
mw Cw Tf - Tw
W
C sol
m
sol
T
% error=
sol
Calculate the percentage error in
experimental value - accepted value
accepted value
HCT PHY1203 PHYSICS II LAB 1 202210
× 100
(3)
(1)
(2)
(5)
(4)
(6)
2 Apparatus:
0 0 0 0 0
000
Calorimeter
Stirrer
Thermometer
Hotplate
Metal sample
Water
Weighing scale
Measuring cylinder
Figure 1: Simulation of
the specific heat capacity
Experiment Experiment Step 5
300mL
200mL
Run Demonstration
100ml
LIQUIDS SOLIDS SOLUTIONS
Unknown metal I
Procedure and implementation
1. Follow the simulation link given below.
Mass (g)
Temp (°C)
Show specific heat (J/g°C) 0.388
Overview Learning Outcomes Experiment
Please choose one:
HCT PHY1203 PHYSICS II LAB 1 202210
12.5
100.
20.92°C
Run Experiment
-600mL
500mL
400mL
300mL
200mL
100mL
LIQUIDS
Water - H₂O
SOLIDS
SOLUTIONS
Mass (g)
Temp (°C)
XShow specific heat (J/g°C) 4.184
https://media.pearsoncmg.com/bc/bc_Omedia _chem/chem_sim/calorimetry/Calor.php
2. Click experiment and then run the experiment, as shown below.
Chemistry Simulations: Calorimetry
Click here
100.
20.0
RUN EXPERIMENT
Then click here
Show graph view
Show microscopic view
Replay
3. Then click on the solid and choose unknown metal 1. Also fix the mass of the
solid (ms) and the temperature of the solid (Tl) to record in the table 1. This
temperature is the initial temperature of the solid (Tsol).
4. Then click next to choose the liquid. Select water and fix the mass of the water
(mw).
Reset
3 5. Record the fixed initial temperature of the water (Tw) at around 20 °C.
6. Now click 'next' to run the experiment and wait until the system reaches to thermal
equilibrium and record this temperature as the final temperature (T₁)
Observation and Analysis (Part I)
(20 marks)
Enter your measurements into the following table. Remember to enter the correct units.
Mass (…............ ..)
Specific Heat c (J/g °C)
Initial temperature T (…….........…... ..)
Final temperature (............ ..)
Metal
Water
4.186
Table 1: Data collected with the metal, water and calorimeter.
HCT PHY1203 PHYSICS II LAB 1 202210
1) Insert the screen shot of the system when it reaches the thermal equilibrium.
marks)
(5
2) Using equation (5), (considering only the water and metal), calculate the specific heat of the
metal (ignore the heat loss due to calorimetry). You must show sufficient working to score full
credit.
(10
marks)
4 3) Determine which of the metals listed in the table (in appendix) has been used in this experiment.
Give a justification for your choice.
(5 marks)
4) Using equation (6), calculate the percentage error between the calculated value (in table 1
above) and the theoretical value of the specific heat of the solid metal used (refer to appendix).
(5 marks)
5) Now use the same simulation link above and choose unknown metal 2 to enter your
measurements into the following table. Remember to enter the correct units.
marks)
(20
Mass (…............ ..)
Specific Heat c (J/g °C)
Initial temperature T (.............….....)
Final temperature (…....…....
HCT PHY1203 PHYSICS II LAB 1 202210
.)
Metal
Water
4.186
5
Most Viewed Questions Of Condensed State Physics
4.5 Two dogs pull horizontally on ropes attached to a post; the angle between the ropes is 60.0°. If dog A exerts a force of 270 N and dog B exerts a force of 300 N, find the magnitude of the resultant force and the angle it makes with dog A’s rope.
The acceleration of a rocket traveling upward is given by a =(6 + 0.02s)m/s², where s is in meters. Determine the time needed for the rocket to reach an altitude of s =100m. Initially, v=0 and s= 0 when t = 0.
A daring 510 N swimmer dives off a cliff with a running horizontal leap, as shown in the figure. What must her minimum speed be just as she leaves the top of the cliff so that she will miss the ledge at the bottom, which is 1.75 m wide and 9.00 m below the top of the cliff?
II) A high-speed drill reaches 2000 rpm in 0.50 s. ! What is the drill's angular acceleration? Through how many revolutions does it turn during this first0.50 s?
An athlete runs along a straight road. She starts from rest and moves with constant acceleration for 5 seconds, reaching a speed of 8 m s-!. This speed is then maintained forT seconds. She then decelerates at a constant rate until she stops. She has run a total of 500 min 75 s. (a) Sketch a speed-time graph to illustrate the motion of the athlete. (a) Sketch a speed-time graph to illustrate the motion of the athlete. (b) Calculate the value of T.
A farmer hitches her tractor to a sled loaded with firewood and pulls it a distance of 27 m along level ground. The total weight of and load is 12,000 N. The tractor exerts a constant 6000-N force at an angle of 35.0° above the horizontal. There is a 8600 N nor force on the sled from the ground, and a 3500 N friction force opposing the sled's motion. Match each force with the expression or value that corresponds to the work it does on the sled. Each force has a only one correct match. Incorrect expressions must be matched to "No matching force". 1. Tension on the chain pulling the sled 2. Weight of the sled 3. Normal force from the ground on the sled 4. Kinetic friction on the sled 5. No matching force
2/123 During a short interval the slotted guides are designed to move according to x =16 – 12 t + 4t² and y = 2 + 15t – 3t², where x and y are in millimeters and t is in seconds. At the instant when t = 2 s determine the radius of curvature p of the path of he constrained pin P.
5. A car is 2.0 km west of a traffic light at t= 0 and 5.0 km east of a traffic light at t=6 min. Assume the origin of the coordinate system is the light and the positive x direction is eastward. (3 points) а.What are the car's position vectors at these two times? b. What is the car's displacement between 0 min and 6 min? What is the car's average velocity between the two points? Record your answer in terms of kilometres per hour.
9. Three charges with q = +7.5 × 10-6 C are located as shown in Figure 7, with L = 25 cm. Determine the magnitude and direction of the total electric force on each particle listed below. (a) the charge at the bottom (b) the charge on the right (c)an electron placed at the origin . Two pith balls, each with a mass of 5.00 g, are attached to non-conducting threads and suspended from the same point on the ceiling. Each thread has a length of 1.00 m. The balls are then given an identical charge, which causes them to separate. At the point that the electric and gravitational forces balance, the threads are separated by an angle30.0°. Calculate the charge on each pith ball. K ASS
In one type of computer keyboard, each key holds a small metal plate that serves as one plate of a parallel-plate, air-filled capacitor. When the key is depressed, the plate separation decreases and the capacitance increases. Electronic circuitry detects the change in capacitance and thus detects that the key has been pressed. In one particular keyboard,the area of each metal plate is 44.5 mm, and the separation between the plates is 0.71n mm before the key is depressed. Calculate the capacitance before the key is depressed. If the circuitry can detect a change in capacitance of 0.300 pF, how far must the key be depressed before the circuitrydetects its depression?
