# Physics: Joule's Constant Data Sheet

**Question description**

Complete the following data sheet:

Specific heat of the material of the calorimeter, s = 0.093 cal/(gm ⋅ C°)

Water equivalent of the heating coil, stirrer, etc., m _{3} = 6.8 gm

Mass of the empty dry calorimeter, m_{1} = 123.4 gm

Mass of calorimeter plus water, m = 280.1 gm

Mass of water in the calorimeter, m_{2} =

No. | Time (min) | Temperature (C °) | Voltage (V) | Current (A) | Power (watt) |
---|---|---|---|---|---|

1 | 0 | 22.6 | 5.2 | 1.1 | |

2 | 3 | 24.1 | 5.1 | 1.1 | |

3 | 6 | 25.4 | 5.2 | 1.2 | |

4 | 9 | 26.8 | 5.0 | 1.0 | |

5 | 12 | 27.8 | 5.2 | 1.1 |

Interval No. | Time Interval (min) | Average Power (watt) |
---|---|---|

1 | 0 - 3 | |

2 | 3 - 6 | |

3 | 6 - 9 | |

4 | 9 - 12 |

Length of a time interval, t =

Total average power, P = Total electrical energy supplied, W =

Initial temperature, T_{1} = 22.6 °C

Final temperature, T_{2} = 28.2 °C

Amount of heat generated in calories, H =

Joule's Constant, J =

Percent error in J (standard value is equal to 4.186 J/cal) =

Give values for all missing items on the sheet.

Give Power = {P_{1}, P_{2}, P_{3}, P_{4}, P_{5}}

Give Average Power = {AP_{1}, AP_{2}, AP_{3}, AP_{4}}

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