Datas and Consequences:

Initial Temperature: To = 25 grades Celsius

Concluding Temperature: Tf = 100 grades Celsius

Rod| Initial length| Change in Length| Coefficient of Linear Expansion ( Exp ) | Coefficient of Linear Expansion ( Theo ) | % Error| Steel| 40| . 035| 1. 17 ten 10 / C| 1. 1 ten 10^-5/ C| 6. 36 % | Copper| 40| . 055| 1. 8 ten 10 ^-5 /C| 1. 7 ten 10^-5 /C| 5. 88 % |

Calculation:

Decision:

1. A bemetalli degree Celsius strip is made by fall ining two stuffs with different coefficients of thermic enlargement. If given figure belo aa & gt ; Bachelor of Arts. will the strip coil upsward or downward.

2. An aluminium rod at 18 C has a length Doctor of Optometry 2. 5 metres. At what possible temperatures will its length alteration by 1 centimeters?

3. One hot summerday a square batch was measured utilizing a steel tape. The same batch was measured by the same steel tape on one wintry twenty-four hours. Will the measuring vary?

4. Two rods have the ff. Properties at 18 C

At what temp. will 2 rod equal in length

5. Given 2 brass rods. one 1 m and the other 1 centimeter at 4 C. At what temp. will the rods double their lengths. Will it be a common temp. ?

Group No. Date:

Leader: Section:

Members:

Experiment no: 1B

Datas and Consequences:

| 1st Rod| 2nd Rod|

Material| Copper| Aluminum|

Initial length| | 400|

Change in Temperature| | |

Change in length| | . 04|

( a ) Exp| | 1. 5 ten 10 ^ -5|

( a ) Theo | 1. 7 ten 10 ^-5| 2. 4 ten 10 ^-5|

% mistake | | |

Calculation:

Decision:

1. Compare the recognized values of the additive enlargement coefficient for the metals used in the experiment. with the experimental values. What is the per centum diff. in eah instance?

2. Based on your replies in 1. what do you believe are the possible beginnings od mistake in the experiment.

3. Why is it necessary to wrap the rod and thermal resistor with cannular residence hall?

4. What are isotorpic metals?

Group No. Date:

Leader: Section:

Members:

Experiment no: 3

Date and Consequences:

Mass of container. megahertz = 36. 72 g

| Material 1| Material 2| Material 3|

Substance| | | |

Initial diameter Doctor of Optometry ice block| | | |

Final diameter of ice block| | | |

Average diameter| | | |

Thickness| | | |

Time to run ice| | | |

Mass of melted ice| | | |

Thermal conductivity| | | |

Thermal conductivity| | | |

% error| | | |

Calculation:

Decision

1. Aglass window window glass has an country of 5 sq. metres and a thickness of 1 centimeter. If the temperature diff. between its faces is 30 C. what is the rate of heat transportation by conductivity through the window?

2. A steel rod has one terminal at 105 C anf the other at 32 C. The length of the saloon is 200 centimeter and has a cross sectional country of 5 sq cm a ) What is the rate at which heat is transferred along the rod? B ) If two rods were connected in series. woth the same temperature at the terminals. what would be the rate of heat transportation? degree Celsius ) If two rods were connected in analogue. same temperature at the terminals. what would be the rate of heat transportation?

3. One terminal of the an insulated metal rod is maintained at 100 C and the other terminal at 0 C by an ice H2O mixture. The rod is 100 centimeter long and has a cross sectional country of 1. 5 sq. centimeter. the heat conducted by the rod thaws 9

gram of ice in 15 min. Find the thermic conduction of the metal?

Group No. Date:

Leader: Section:

Members:

Experiment no: 4

Datas and consequences:

Mass of calorimeter:

Mass of scaremonger

Specific heat of calorimeter

Specific heat of scaremonger

Part I

Mass of calorimeter H2O and grams| |

Mas of water| |

Initial temperature of wate. calorimeter and stirrer| |

Equilibrium temperature| |

Mass of calorimeter. H2O and steam| |

Mass of steam| |

Computed value of heat of vaporization| |

Accepted value of heat of vaporization| |

% error| |

Part II

Mass of calorimeter H2O and grams| |

Mas of water| |

Initial temperature of wate. calorimeter and stirrer| |

Equilibrium temperature| |

Mass of calorimeter. H2O and melted ice| |

Mass of ice | |

Computed value of heat of vaporization| |

Accepted value of heat of fusion| |

% error| |

Calculations

Decision

1. What is H2O trap?

2. Why is it necessary to dry the ice before adding to the H2O?

3. Find the sum of heat needed to wholly change over 50 gms of ice at -2C to steam at 102 C?

4. Ice regular hexahedron trays are filled with 1 kilograms of H2O at 18 C and placed in the deep-freeze. Determine the sum of heat energy that must be drawn from the H2O to turn it into ice regular hexahedrons at – 4 C?

5. The runing point of aluminium is 660 C while the boiling point of is 2450 C. The Lf and Lv are 94. 8 and 2720 cal/gm severally. Determine the amout of heat reuired to boil 200 gms of aluminium at 20 C without change overing it to vapor?

Group No. Date:

Leader: Section:

Members:

Experiment no: 2

Datas and consequences:

Specific heat of calorimeter:

Specific heat of scaremonger:

Material of metal shooting specimen| |

Mass of specimen| |

Mass of calorimeter| |

Mass of stirrer| |

Mass of calorimeter and water| |

Mass of water| |

Initial temperature of cold H2O. calorimeter and stirrer| | Initial temperature of specimen| |

Equilibrium temperature| |

Computed specific heat of specimen| |

Specific heat of specimen| |

% error| |

Calculations

Decision

1. The heat gained by the thermometer was neglected in the calculation. How did this impact the consequence of the computed specific heat of the specimen?

2. Using the per centum mistake you made in the experiment. find the sum of heat that was non acounted?

3. A 100g ice regular hexahedron is placed into 200 g of H2O in styrofoam cup. The initial temperature of H2O is 25 C and the ice is intially at -15 C. Determine the concluding temperature of the drink. Use. 49 ( kcal/gk x C ) for the specific heat of ice.

4. A kilogram Doctor of Optometry heated aluminium 100C is placed in a pail of H2O 20C and allowed to make its thermic equilibrium. A kg of het brass 100 C is placed in another pail of H2O at 20C and allowed to make thermic equilibrium. Which pail will stop holding higher thermic equilibrium temperature?