Two identical blocks of iron, one at 10 degrees C and the other at 20 degrees C, are put in contact. Suppose the cooler block cools to 5 degrees C and the warmer block warms to 25 degrees C. This would violate the

second law of thermodynamics.

Explanation:

The second law of thermodynamics states that the physical quantity known as entropy of an isolated would always increase. Thus, the entropy of an isolated would increase all the time rather than decrease.

Basically, the second law of thermodynamics is as a result of the first law of thermodynamics. The second law of thermodynamics is about a physical quantity known as entropy while the first law of thermodynamics states that energy cannot be created or destroyed but can only be transformed from one form to another

In this scenario, two identical blocks of iron, one at 10 degrees C and the other at 20 degrees C, are put in contact. Suppose the cooler block cools to 5 degrees C and the warmer block warms to 25 degrees C.

Hence, this would violate the second law of thermodynamics because it states that the entropy of a system has a tendency to increase rather than decrease. Also, the second law of thermodynamics would be violated because heat is supposed to flow from the hot (warm) block of iron to the cold block of iron.

the total distance traveled by the car is

30km + 49km = 79 km .