A steam engine intakes 100gm of steam at $$100^\circ C$$ per minute and cools it down to $$20^\circ C$$ . Calculate the heat rejected by the steam engine per minute. (consider Latent Heat of vaporization of steam = 540 cal/gm and Cp = 1 cal/gm/$$^\circ C$$

A

$$6.2 \times 10^4$$ kCal

B

$$62 \times 10^4$$ Cal

C

$$6.2 \times 10^4$$ Cal

D

$$620 \times 10^4$$ kCal