Question

two ends of a rod are kept at 127 and 227 .calculate the change in entropy whewn 2000 calories of heat flowes through the rod

Answer 1

The change in entropy when heat flows through a rod can be calculated using the formula ΔS = Q/T. In this case, the change in entropy is 83.68 J/K.

Step-by-step explanation:

The change in entropy when heat flows through a rod can be calculated using the formula:

ΔS = Q/T

Where ΔS is the change in entropy, Q is the amount of heat flowing through the rod, and T is the temperature of the rod.

In this case, the amount of heat flowing through the rod is 2000 calories, which can be converted to joules (1 calorie = 4.184 joules). The temperature difference between the two ends of the rod is 227 - 127 = 100 Kelvin.

So, plugging the values into the formula:

ΔS = (2000 * 4.184) / 100 = 83.68 J/K