Five Moles of an Ideal Gas Expands Isothermally at 100 $\degree$

Multiple Choice

Five moles of an ideal gas expands isothermally at 100 $\degree$ C to five times its initial volume.Find the heat flow into the system.

A) 2.5 * 10⁴ J
B) 1.1 *10⁴ J
C) 6.7 * 10³ J
D) 2.9 *10³ J
E) 7.0 *10² J