Question

find what heat in calories (cal) is regained to change 54 g of 100 degrees C boiling water into steam. the heat of vaporization for water L v I 54o cal

Answer 1

Answer: The heat required to change 54 g of boiling water into steam is 29,160 calories (cal).

Explanation: To find the heat required to change 54 g of boiling water into steam, we need to use the formula:

Q = m * L

where Q is the heat in calories, m is the mass of the substance in grams, and L is the heat of vaporization for water.

In this case, we have:

m = 54 g

L = 540 cal/g (the heat of vaporization for water at standard conditions)

So, plugging in the values:

Q = 54 g * 540 cal/g = 29160 cal