Single Choice

According to IUPAC conventions work done on the surroundings is:

Anegative
Correct Answer
Bpositive
Ccan't say anything
Dnone of these

Solution

According to latest sign conventions
(a) Work done is taken negative if it is done by the system since energy of system is decreased.

Ex. Expansion of gas.

Work done is taken positive if it is done on the system, since energy of system is increased.

SIMILAR QUESTIONS

Chemical Thermodynamics

What will be the change in internal energy when $$12$$ $$kJ$$ of work is done on the system and $$2 \ kJ$$ of heat is given by the system?

Chemical Thermodynamics

An ideal gas does work on its surroundings when it expands by 2.5 L against external pressure 2 atm. This work done is used to heat up 1 mole of water at 293 K. What would be the final temperature of water in Kelvin if specific heat for water is 4.184 $$Jg^{-1} K^{-1}$$?

Chemical Thermodynamics

$$W$$ is positive when the work is done on the system.

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