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With regard to work output vs. caloric input, the thermodynamic efficiency of a human being is about 25%. This comes from measuring the work output of cyclists compared to the oxygen they consume. However, some of the energy value of the food people eat exits the body unused, because it is not metabolized. The unused portion might be 1/3 to 1/2 of the total energy value ingested. When the unused food energy value is included, the thermodynamic efficiency thus drops to 13% to 17%.
What else can I help you with?
Is the heat capacity of a body the same as its specific heat capacity?
The heat capacity depends on the mass of a material and is expressed in j/K.The specific heat capacity not depends on the mass of a material and is expressed in j/mol.K.
What factor most influence the amount of energy needed to change the temperature of a substance?
specific heat capacity
What is the difference between smaller specific heat and bigger specific heat?
A smaller specific heat capacity of a body means that a smaller amount of energy is required to raise the temperature of the body by 1 K compared to the other.
What is specific heat capacity and what does it measure?
Specific heat capacity(q) is the amount of heat needed to raise a tamperature of a body with mass of 1kg by 1K or 1 decree celcius. The formuale to calculate it is c(specific heat capacity) = Q/mass x change in temperature.
What is the speciic heat capacity of KNO3?
What is the specific heat capacity of kno3
Is the heat capacity of a body the same as its specific heat capacity?
The heat capacity depends on the mass of a material and is expressed in j/K.The specific heat capacity not depends on the mass of a material and is expressed in j/mol.K.
When does the thermal capacity of a substance become equal to its specific gravity?
Thermal capacity is equals to the product of the mass of the body and its specific gravity. Thus, specific heat is equals to the thermal capacity divided by the mass of the body. Now, if the mass of tue body be unity then specific heat will be equals to the thermal capacity of the body. So, thermal capacity of unit mass of a substance is equals to its specific heat
Describe specific heat capacity as varying between different materials?
Specific heat capacity is the amount of heat energy required to raise the temperature of a body per unit of mass.
What factor most influence the amount of energy needed to change the temperature of a substance?
specific heat capacity
What are the factors upon which the amount of heat contained in a body depends?
The amount of heat contained in a body depends on its mass, temperature, and specific heat capacity. The more massive a body is, the more heat it can store for the same temperature change. Additionally, materials with a higher specific heat capacity require more heat to raise their temperature.
Why does the human body have a high heat capacity?
The human body is like a heating system because we have an internal temperature "gauge", so to speak. Our bodies can tell when we are cold or hot and create sweat to cool us down if we get too hot.
What is the specific heat capacity of Polyester?
The specific heat capacity of polyester is 2.35degrees
What is the difference between smaller specific heat and bigger specific heat?
A smaller specific heat capacity of a body means that a smaller amount of energy is required to raise the temperature of the body by 1 K compared to the other.
Which metal has the highest specific heat capacity?
No. Metals have a relatively low specific heat.
What has an affect on the amount of heat a body will store?
The material of the body and its specific heat capacity, its mass, the temperature difference between the body and its surroundings, and the duration of heat exposure all affect the amount of heat a body will store.
Name one quantity that must be know in order to determine the amount of heat associated with a body?
There are three: Energy absorbed by a body is directly proportional to the rise in temperature of a body Heat energy absorbed by a body is directly proportional to the mass of the body Heat energy absorbed by a body depends upon its nature and is commonly called specific heat capacity.
What is the speciic heat capacity of KNO3?
What is the specific heat capacity of kno3
