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Dennis_Churaev [7]
3 years ago
8

HELP ASAP VERY IMPORTANT.

Physics
1 answer:
sertanlavr [38]3 years ago
4 0

<em>Answers:</em>

<em>1. The hot soup will loose the heat and the ice water will gain the heat</em>

  • If two jars are insulated inside the insulated box, the heat may not be transferred to outside of the box.
  • According to II law of thermodynamics, Heat always flow from high temperature body to low temperature body, with out aid of external energy.

<em>So, from two points, it is concluded that The hot soup will lose heat and the ice water will gain the heat until they reach the thermodynamic equilibrium.</em>

<em>2. The particles in gases are farther apart and move faster   </em>

  • Particles in the gases are loosely packed (greater distance between particles compared to solids and liquids) and particles collide less often.

<em>Therefore conduction is weak in gases compared to solids and liquids.</em>

<em>3. Heat and milk by conduction; popping popcorn by radiation.</em>

  • The heat can transfer from pot to the milk by conduction because they are in contact at boundaries, similarly the pot and the stove are in contact <em>so the conduction transfers heat from pot to the milk. </em>
  • In microwave oven there is no direct contact (<em>no conduction</em>) of heat and popcorn, also there is no molecular momentum transfer <em>(means of no convection).</em>

<em>So obviously the heat transfer by radiation occurs in a microwave oven.</em>

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