Answer:
Heat gained by 1.25 grams of ice is 250 joules
Explanation:
As we know
T
Where
T is the change in temperature
Water freezes at 273.15 K/0 degree Celsius, and it boils at 373.15 K/00 degree Celsius,
T
m is the mass in grams
c is the specific heat of water (ice) = 2.05 joules/gram
Substituting the given values, we get -
Joules.
The density of a substance is its mass per unit volume, given by the mass divided by the volume. Density depends on the substance of concern and doesn't matter whether one has a little amount of it or a whole full of it. Therefore, the density of the two smaller pieces is now the same as the original density.
Certain molecules from the pathogen must be introduced into the body to trigger an immune response. These molecules are called antigens, and they are present on all viruses and bacteria.
Answer:
False
Explanation:
Temperature is the measure of the amount of kinetic energy in a substance.
It is commonly assumed that temperature measures the amount of heat, because it is commonly associated with the weather or checking for fevers.
However, temperature is truly a measure of the average kinetic energy of a substance.
