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# Thermodynamics

Question | Answer |
---|---|

Define Density | the mass per unit volume |

Define the density equation for the mass of atoms | rho = Ma/(2Ra)^3 |

Define the mass of the atom in terms of the atomic weight and avocado's number | Ma=AWg/Na |

How are atoms seen | By using shortwave radiation which is smaller than the diameter of the atom. |

Define Kinetic Energy | the energy that a moving body has Ek = (m/2)*v^2 |

Show the relationship between momentum and kinetic energy | Ek = (p^2)/(2m) |

Show the equation for thermal linear expansion. | Delta(L)=Lo*Delta(T)*coefficient. |

Explain how thermal expansion occurs | The change in the temperature changes the energy state of the atoms making them take up more space and increasing the dimensions of the object. |

Show the equation for thermal volume expansion. | Delta(V)=Vo*Delat(T)*coefficient |

Explain thermal equilibrium. | This occur if and only if the systems have the same temperature. |

Change Fahrenheit to Celsius. | Tc=9/5(Tf-32) |

Define the kelvin scale | The kelvin scale start at -273.15 deg Celsius. |

Show the constant-volume equation for temperature | T2/T1=P2/P1 P=pressure |