Does the physical state of a substance does not affect its specific heat?

Answer and Explanation: False. The specific heat of a substance is the energy required to change the temperature of the substance and not its phase.

Is the specific heat of a substance a chemical or physical property?

Specific heat is a physical property.

Is the specific heat an intensive or extensive physical property Why does this matter?

The specific heat is the heat capacity per unit mass of the substance. It is an intensive property expressed as extensive property per unit mass. Therefore it is an intensive property.

Is heat a physical substance?

According to caloric theory, heat was material in nature. It was a physical substance.

Does mass of a substance change when heated?

Solution : Mass is always conserved during any change as transmission of heat either cooling or heating.

Does specific heat change with state?

Specific heat capacity often varies with temperature, and is different for each state of matter.

What type of property is specific heat?

Specific heat is an intensive property. Its magnitude does not depends upon the amount of matter present in the system.

What is specific heat of a substance?

specific heat, the quantity of heat required to raise the temperature of one gram of a substance by one Celsius degree. The units of specific heat are usually calories or joules per gram per Celsius degree. For example, the specific heat of water is 1 calorie (or 4.186 joules) per gram per Celsius degree.

Is the specific heat capacity of a substance an intensive or extensive property?

The specific heat capacity of a substance or a compound describes the amount of heat (in Joules) needed to increase the temperature of one gram of the substance by 1 unit. The specific heat capacity is independent on the amount of substance used, therefore, it is classified as an intensive property of a substance.

Why heat capacity is extensive and specific heat capacity is intensive?

Solution : Heat capacity depends upon the mass of the substance and therefore, it is an extensive property. But specific heat is the heat capacity per unit mass and therefore, becomes independent of amount of substance. Hence specific heat is intensive property.

Why is specific heat considered as an intensive property?

Specific heat is an intensive property. Its magnitude does not depends upon the amount of matter present in the system.

What is intensive physical property of matter?

An intensive property is a property of matter that depends only on the type of matter in a sample and not on the amount. Other intensive properties include color, temperature, density, and solubility.

In which energy the heat of substance is based?

Thermal energy is the energy that comes from the heated up substance. The hotter the substance, the more its particles move, and the higher its thermal energy.

Why is heat a form of energy?

Heat is a form of energy because it is emitted from a source. It flows from a hotter body to a colder body and this transfer is by thermal interactions.

Is heat a chemical reaction?

This reaction generates heat as a product and is (very) exothermic. However, physical changes can be exothermic or endothermic. The melting of an ice cube, which is endothermic, is a change in a physical property and not composition. Thus, it is a physical change.

Does heat increase or decrease mass?

As the energy within a an object increases – ie by heating it up – it will increase in mass.

Does weight change with heat?

Yes. If you have absolutely identical objects that have the same weight exactly when they are at the same temperature, then when one object is heated, it will weigh more. This is because the gravitational force depends on the stress energy tensor in general relativity.

Does heat increase the mass of an object?

You are absolutely correct. The measured mass would increase if you heat an object up. Just remember that the equation E=mc^2 only applies to objects at rest.

What does specific heat depend on?

the specific heat capacity (or simply, the specific heat), which is the heat capacity per unit mass of a material. Experiments show that the transferred heat depends on three factors: (1) The change in temperature, (2) the mass of the system, and (3) the substance and phase of the substance.

Does specific heat increase with temperature?

In general, heat capacity depends on temperature, so the answer is no, the amount is different. However, due to the equipartition theorem, at sufficiently high temperature (compared to the typical temperature scale given by quantum mechanics) the temperature dependence flattens out.

Does specific heat depend on pressure?

It depends on the temperature, pressure, and volume of the system under consideration. Unlike the total heat capacity, the specific heat capacity is independent of mass or volume. It describes how much heat must be added to a unit of mass of a given substance to raise its temperature by one degree Celsius.

Why is specific heat important?

3.7. Heat capacity or specific heat is the amount of heat per unit mass that is required to raise the temperature by 1°C. Specific heat is helpful in determining the processing temperatures and amount of heat necessary for processing and can be helpful in differentiating between two polymeric composites.

What is true about specific heat capacity?

Answer and Explanation: (d) It is the amount of heat needed to raise a specific mass of substance by a specific temperature change is the correct answer.

What is known as specific heat capacity?

The specific heat capacity is defined as the quantity of heat (J) absorbed per unit mass (kg) of the material when its temperature increases 1 K (or 1 °C), and its units are J/(kg K) or J/(kg °C).

How does specific heat work?

Specific heat is defined by the amount of heat needed to raise the temperature of 1 gram of a substance 1 degree Celsius (°C). Water has a high specific heat, meaning it takes more energy to increase the temperature of water compared to other substances.

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