If a certain amount of dry ice is mixed with same amount of water at 80°C, the final temperature of mixture will be__________________?
A. 80°C
B. 0°C
C. 40°C
D. 20°C
E. 60°C
A. 80°C
B. 0°C
C. 40°C
D. 20°C
E. 60°C