Question

$200J$ of heat is provided to the system. Work done on the system is $20J$ . What is the change in internal energy?

• A. $220kJ$
• B. $2.2\times 10^{-1}kJ$
• C. $2.2\times 10^{-5}kJ$
• D. $220cal$

Answer 1

Answer: (B)

$\Delta U=220/1000$
$=2.2\times 10^{-1}kJ$