heat and energy

Related BrainMass Solutions

• Heat flow: conduction and convection

  By absorbing heat energy, temperature of a body can increase, and on emission of heat energy temperature of a body decreases. For conduction and convection, a medium of heat energy transfer is required.

• Properties of Temperature, Heat and Their Relationship

  Thus, the original fast moving molecules lose a little energy and the molecules they bump into gain energy. The original fast moving molecules have less heat and those bumped into have more heat.

• Work, Internal Energy, Heat

  Hope this helps Thanks again Yinon This solution provides step-by-step calculations and explanations for internal energy, work, and heat.

• Amount of Ice Added to Cool Water

  The general formula for heat energy gain/loss is: Where m is the mass of the substance, c is the specific heat and Tf and Ti are the final and initial temperatures respectively.

• Temperature related to resulting mixtures of steam and condensed water

  Heat energy taken by 300 gm water@0 degC + 35 gm ice @0 degC + 120 gm copper container @ 0 degC = Heat energy given by steam of 17 gm @ 100 degC sp. heat of water sw= 1 cal/gm/C = 4.186 J/gm/C sp. heat of copper scu= 0.39 J/gm/C Latent heat of

• Calorimetry, calculations of heat energy required etc.

  capacities, molar heat capacity and mass of the substance.

• Calculating heat of the reaction from activation energy

  Please see the attachment to have an idea about how activation energy and heat of reaction are related. The mere knowledge of activation energy wil not give any idea about the heat of reaction.

• heat and energy

  The solution is composed to detailed explainations to heat and energy related questions.

• Finding heat and work energy transferred from a fluid under pressure.

  What is the mass of the fluid, the final specific volume, work energy transfered and the heat energy supplied?

• Basic thermodynamics of a resistor.

  The energy transferred from the resistor to the water is heat. The heat in the resistor is due to the electrons bouncing against each other and slowing down, losing kinetic energy.