Question

If a system absorbs 50J of heat
and does 10 J of work on its surrounding then the change of energy will be
a:50J
b:10J
c:40J
d:60J​

Answer 1

D) 60 J

Solution:- 60J

Given:-

q=50J

W=10J

According to first law of thermodynamics,

⇒ Internal energy (ΔU)=q+W=50+10=60J

Answer 2

Answer:

(D) is the right option

60J

hope you understand