Write 'yes' if heat, work or matter are able to cross the boundary of the corresponding system and 'no' if passage is forbidden:

Work is a state function which is expressed in joule. work appears only at the boundary of the system.

The system in which there is no exchange of matter, work, or energy from the surroundings is

If 'r' is the work done on the system and 's' is heat evolved by the system then,

The first law of thermodynamics was given as q=DeltaU+(-w) , where q is heat given to a system and DeltaU represents increase in internal energy and -w is work done by the system. Various processes such as isothermal, adiabatic, cyclic, isobaric and isochoric process in terms of I law of thermodynamics leads for important results. The molar heat capacity for 1 mole of monoatomic gas is 3/2 R at constant volume and 5/2 R at constant pressure. Which of the following statements are correct? (1) Both work and heat appears at the boundaries of system. (2) Heat given to a system is given +ve sign. (3) Heat given to a system is equal to increase in internal energy under isothermal conditions (4) Heat given to a system is used to increase internal energy under isochoric conditions (5) Both work and heat are not state functions but their sum (q+w) is state function.

A system performs work DeltaW when an amount of heat is DeltaQ added to the system, the corresponding change in the internal energy is DeltaU . A unique function of the initial and final states (irrespective of the mode of change) is

If W is the amount of work done by the system and q is the amount of heat supplied to the system, identify the type of the system

If 500 calorie of heat energy are added to a system and the system does 350 calorie of work on the surroundings, what is the energy change of the system?