Question

200 joules of heat was supplied to a system at constant volume. It resulted in the increase in temperature of the system from 298 to 323 K. what is the change in internal energy of the system?

• A. 400 J
• B. 200 J
• C. 50 J
• D. 150 J

Answer 1

Answer: (B)

200 J

Answer 2

: At constant volume, $\Delta V = 0$

$W = - P\Delta V = 0\Delta E = q = 200J$