If heat engine is filled at temperature 27°C and heat of 100 kcal is taken from source at temperature 677°C. work done (in J) is:
a. 0.22 × 10⁷KJ
b. 0.28 × 10⁶KJ
c. 0.30 × 10⁵KJ
d. 0.65 × 10⁵KJ