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define Zeroth Law of Thermodynamics: Calorie: External Work:

define 
Zeroth Law of Thermodynamics:
 
Calorie:
External Work:
 

Grade:12

2 Answers

SAI SARDAR
1700 Points
5 years ago
The zeroth law of thermodynamics states that if two thermodynamic systems are each in thermal equilibrium with a third, then they are in thermal equilibrium with each other.
vamshi
199 Points
5 years ago
1 a) This law gives the concept of temperature.
b) If the temperatures of two bodies are equal then they are said to be in thermal equilibrium.
c) When two bodies A and B are in thermal equilibrium with a third body C individually, then
the bodies A and B are in thermal equilibrium with each other.
2 The quantity of heat required to rise the temperature of 1gram of water from 14.50 C to 15.50 C
is called standard Calorie.
3 a) The work done by the system is positive.
b) The work done on the system is negative.

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