\text { E2A.4 }(\mathrm{Q}=2.68 \mathrm{~kJ}, \mathrm{~W}=-6.3 \mathrm{~kJ} ? \mathrm{Q}=3.41 \mathrm{~kJ}, \mathrm{~W}=-3.41 \mathrm{~kJ} ?)