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Results for Quantity of Heat

List the disadvantages of first generation computers ?

The disadvantages of first generation computers are :-

  • They are huge in size.
  • They generate a great deal of heat .
  • They consumes large quantities of electric power.
  • They had very limited memories and processing capacities.

Why does a refrigerator consume more power in summer than in winter to cool the same quantity of food by the same degree?

Answer: Heat pumps are designed to move thermal energy opposite to the direction of spontaneous heat flow by absorbing heat from a cold space and releasing it to a warmer one. Due to surrounding temperature a refrigerator consume more power in summer than in winter to cool the same quantity of food by same degree.

First law of Thermodynamics

First law of Thermodynamics states that " Amount of heat changed in system is equal to sum of change in internal energy and workdone of a system". First law if Thermodynamics is also known as princ...

Limits of specific heat of a gas.

Limits of specific heat of a gasConsider 'm' mass of a gas enclosed in a cylinder fitted with an air-tight and frictionless piston.Suppose the gas is suddenly compressed. No heat is supplied to the...

NON-METALS : CARBON

Carbon:Carbon has been known to chemists since long in the form of coal, diamond, graphite, etc. Most of the compounds include carbon as its constituent element. All the living bodies are composed ...

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