A copper block of volume 1 L is heat treated at 500°C and

Chapter 3, Problem 118HP

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QUESTION:

Problem 118HP

A copper block of volume 1 L is heat treated at 500°C and now cooled in a 200-L oil bath initially at 20°C, as shown in Fig. P3.118. Assuming no heat transfer with the surroundings, what is the final temperature?

FIGURE P3.118

Questions & Answers

QUESTION:

Problem 118HP

A copper block of volume 1 L is heat treated at 500°C and now cooled in a 200-L oil bath initially at 20°C, as shown in Fig. P3.118. Assuming no heat transfer with the surroundings, what is the final temperature?

FIGURE P3.118

ANSWER:

Solution 118 HP:

Step 1 of 2:-

Here we have to find the final temperature of the whole system.

The volume of copper block is,

.

So, the mass of the block is, .

The mass of the oil is, .

The temperature of the copper block was,

.

The temperature of the oil was,

.

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