Question $2(15$ minutes$)$

A domestic refrigerator system baslcally consists of an evaporator which absorbs heot from air which circulate around the contents $($whatever food items kept inside$)$ in the refrigerator, condenser $($to remove heat from the refrigerant$),$ throttling device and a compressor $($to pump the refrigerant$).$a boundary can be considered enclosing the entire system.

The refrigerator runs several cycles doing $15000J$ of work on the refrigerant. The refigerant in turn removes $75000J$ by heat from the air inside the refrigerator. Answer the following questions:

i$)$ How much heat energy is transferred to the outside from the refituerant?

ii$)$ What is the net interanal energy of the refilgerant?

iii$)$ What is the amount of work done on the air inside of the refiegrator spece?

iv$)$ What is the net interal energy change of the air inside the refingorater spece? explain the elements of the equation and why yiu use thst rwuation.if its q $2=$ q$1-$w $,$why u is $0$