Which of the following statements are true?1) Heat and work are completely interchangeable forms of energy2) Heat and work are not completely interchangeable forms of energy3) Work can be converted completely into heat4) Heat can be converted completely into work

Which of the following statements are true?1) Heat and work are comple

1.	Which of the following statements are true?1) Heat and work are completely interchangeable forms of energy2) Heat and work are not completely interchangeable forms of energy3) Work can be converted completely into heat4) Heat can be converted completely into work
A.	1 & 4
B.	1 & 3
C.	2 & 4
D.	2 & 3
Answer» E.