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Chapter 3: Q. 3.88 (page 93)
Oa a hot sunny day, you get out of the swimming pool and sit in a metal chair, which is very hot. Would you predict that the specific heat of the metal is higher or lower than that of water? Explain.
As a result, the temperature of a metal chair rises faster than that of water
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Use the heat equation to calculate the energy for each of the following (see Table):
a. calories lost whenlocalid="1653051789792" a of waler cools from localid="1651743554041" to localid="1651743558077"
h. joules to heatlocalid="1651743562257" of water from localid="1651743566051" to localid="1651743570658"
C. kilocalories to heat localid="1651743574953" of water from localid="1651743579245" to localid="1651743583100"
d. kilojoules to heat localid="1651743586855" of gold fromlocalid="1651743591821" to localid="1651743595595"
A young patient drinks whole milk as part of her diet. Calculate the total kilocalories if the glass of milk contains of carbohydrate, of fat, and of protein. (Round off answers for each food type to the tens place.)
A piece of ice at is added to a sample of water at . All of the ice melts and the temperature of the water decreases to . How many grams of water were in the sample?
Using the energy values for foods (see Table), determine each of the following (round off the answer for each food type to the tens place):
(a) the total kilojoules for one cup of orange juice that contains 26 g of carbohydrate, no fat, and of protein
(b) the grams of carbohydrate in one apple if the apple has no fat and no protein and provides of energy
(c) the kilocalories in one tablespoon of vegetable oil, which containsof fat and no carbohydrate or protein
(d )the grams of fat in one avocado that has , of carbohydrate, and of protein
Describe each property of the element zirconium as physical or chemical.
a. melts at 1852 degrees
b. is resistant to corrosion
c. has a greyish-white color
d. ignites spontaneously in the air when finely divided
e. is a shiny metal
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