q = mass*specific heat*change in temperature
q = (30.0 g)(0.46 J/gC)(25.0 C - 56.7 C)
= - 437 Joules in lost heat
===================
20
No. Pure water boils at 100 degrees Celsius or less.
The difference is also 12 degrees.
changes 10 degrees C and 283 degrees K if im not mistaken which im bound to be not sure of the esential #
The moisture decreases.
.271 mol
275 degrees
Frozen (23F)
mmmm enthalpy
That would depend on the mass of the sample, its temperature, and what the sample is made of.
The temperature of the water is 100 degrees celsius.
1.7293
No. Pure water boils at 100 degrees Celsius or less.
The difference is also 12 degrees.
changes 10 degrees C and 283 degrees K if im not mistaken which im bound to be not sure of the esential #
The change in temperature is 25 degrees Celsius, meaning it takes 22.48 joules per degree of change. The specific heat of iron is 0.449 J/g degree Celsius. This means that the mass of iron must be 50.07 grams
80
Adding salt to water lowers the temperature at which water freezes from 0 degrees Celsius to several degrees colder than that (depending on how much salt is added). Practically what that means is that a sample of pure water at -1 degrees Celsius will be frozen solid, but a sample of salt water at the same temperature will remain liquid since its freezing point is lower that.