heat gained = heat lostZoey Brown said:Homework Statement
A solid, 2.00 kg cube of nitrogen at -220.0oC is added to a 1.00 kg mixture of ice and
water at 0.00 oC. If the final temperature of the mixture is -100.0 oC, how much ice was
there in the original mixture?
Homework Equations
e=mct
e=mLv/f
The Attempt at a Solution
Don't know where to start
Did you remember that N2 is liquid below -196C and gas above that temperature?Fizzix_G said:Hi Zoey,
First you have to start off by calculating how much energy it takes to make nitrogen go to -100 degrees Celsius. Try doing this and the number you should get is 476 400 Joules.
Mass is a measure of the amount of matter in an object. It is a fundamental property of matter and is often measured in kilograms (kg).
The mass of a substance in a system plays a crucial role in heat transfer. The amount of heat transferred is directly proportional to the mass of the substance. This means that the more mass there is in a system, the more heat is required to raise its temperature.
The specific heat capacity of a substance is the amount of heat required to raise the temperature of 1 kilogram of the substance by 1 degree Celsius. This means that substances with a higher specific heat capacity require more heat to raise their temperature compared to substances with a lower specific heat capacity. Therefore, the mass of a substance with a high specific heat capacity will have a greater impact on heat transfer compared to a substance with a lower specific heat capacity.
The mass of a substance in a system can be measured using a scale. This can be a laboratory balance or a digital scale, depending on the accuracy and precision required for the experiment.
Yes, the mass of a substance can change during heat transfer. This is because heat can cause a substance to change states, such as from solid to liquid or liquid to gas, which can alter its mass. Additionally, some substances may undergo chemical reactions during heat transfer, which can also change their mass.