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Question: The minimum amount of steam required to raise the temp of 4 kg water from 10<sup>0</sup>C to 80<sup>...

The minimum amount of steam required to raise the temp of 4 kg water from 100C to 800C

A

1 kg

B

12\frac{1}{2}kg

C

32\frac{3}{2} kg

D

2 kg

Answer

12\frac{1}{2}kg

Explanation

Solution

4 × 1 × 70 = M × 540 + M × 1 × 20

M = 1/2 kg