What happens to the mass of a substance as the temperature is increased?
The temperature of a substance has no effect on its mass.
UNLESS ... part of it evaporates and blows away, or melts in a puddle and runs off the edge of the table.
As long as all of the substance stays there, its mass doesn't change, no matter how hot or cold it gets.
What happens to the temperature when the mass is increased in a chemical reaction involving magnesium and hydrochloric acid?
When something burns, it is getting oxidized. Combustion reactions involve oxygen. During oxidation, 1.the substance forms a bond with oxygen (or) 2.an element of the substance breaks away from it to bond with oxygen. The mass of the reactants (substance + oxygen) are always equal to the mass of the products. If the mass referred to in the question is the mass of the substance, then you can say that the mass has increased due…
The substance with the lowest known melting temperature is the noble gas helium. Helium will not freeze at atmospheric pressures, but will freeze at about 1K (-272oC) when pressure is increased to 2.5 MPa (about 25 times atmospheric pressure). Due to helium's small atomic mass, and relative insucceptibility to dispersion forces, it is unlikely that there is a substance with a lower melting temperature.
Thermal expansion is the tendency of matter to change in volume in response to change in temperature. During thermal expansion, the density of a substance decreases as its volume increases. Volume is the space occupied by a body. So, when a substance expands on heating, it will occupy more space or will have more volume. But its mass does not change because the amount of matter contained in a body cannot change. Therefore, mass divided…
What happens to the acceleration of an object if the force on the object stays the same as its mass decreases?
density is a measure of mass that is contained in a unit of volume for a particular substance. it increases it cannot expand if we say that density is increasing it means that either mass has increased or volume has decreased like on cooling volume decreases. on mixing(chemically or dissolving) mass increases.
What are the factors that affect the amount of energy needed to change the temperature of a substance?
Factors which affect the amount of energy needed to change the temperature of a substance are: 1) the amount (mass) of the substance 2) what temperature change is required (from what temperature to what temperature) 3) the specific heat of the substance, which is "the number of calories required to raise the temperature of 1 gram of the substance by 1 degree Centigrade" 4) the ambient temperature of the surroundings where this change is to…
Different objects have different specific heats, which determine how much energy has to be absorbed or lost per amount of the substance in order to change the temperature of that substance by 1 degree Celsius. According to thermodynamics, heat has a tendency to distribute itself evenly throughout the mass of a given substance. So that, if given enough time, the entire mass will be at the same temperature (there are no long-term higher concentrations of…
What is the questions? Atoms do not change temperature. They do not get hot or cold. What we call temperature is really a measure of the mass and velocity of the atoms in a substance. Temperature is a measure of the average Kinetic energy of the atoms in a substance. Kinetic energy = ½ Mass·Velocity2