0
c = Q / (m(change in temperature))
Where,
c = specific heat capacity
Q = amount of heat needed
m = mass
Change in temperature = initial temperature - temperature(after)
Take note that this equation cannot be used in calculating the change in state - melting and boiling
Because temperature do not change.
We therefore use:
Q = lv x m
Where,
lv = latent heat of vapourisation (for boiling/condensation ONLY)
m = mass
Q = lf x m
Where,
lf = latent heat of fusion (for melting/freezing ONLY)
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∙ 12y ago
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∙ 14y agoGain (dB) of an amplifier = 10 log [ (output power) / (input power) ]
Gain in net worth = (net worth at the end of a time period) - (net worth at the beginning of the same period)
Gain (dB) of a parabolic antenna: 7.5 + 20 log [ (frequency in GHz) / (reflector diameter in feet) ]
Gain in weight = (weight after) - (weight before)
Wiki User
∙ 9y agoThe formula for heat is changing based on a few different factors. For example some materials create heat because they are mixed while others must be burned to produce heat.
Wiki User
∙ 13y agoEh = McT Where 'Eh' is heat energy, 'M' is mass, 'c' is Specific Heat, and 'T' is temperature.
Wiki User
∙ 14y agoQ = mcΔT or Q = CΔT Where Q is heat transferred, m is mass, c is specific heat capacity, C is heat capacity, and ΔT is change in temperature.
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∙ 13y agoQ=UxAxTD
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Equation for calculating if mass is known?
according to energy heat equation e=mc^2 where c is speed we can calculate energy
What is the mass of an object with 2258 joules of heat absorbed?
It could be almost anything. The relationship is: heat = mass x specific heat x temperature change So, if you know any three of these variables, you can calculate the fourth one.
How can the specific heat of water be used to determine the specific heat of an object?
If you know the temperature and mass of an object, and the temperature, mass, and specific heat of the water, if you dunk the object in the water, and measure the temperature of the water and the object (once the object and water have the same temperature), using reasoning skills and/or equations you can figure out the specific heat of the object. Historically the specific heat was related to SH of water . Water being 1 That now is seen as archaic. The specific heat (of a substance) is the amount of heat per unit mass required to raise the temperature by one degree Celsius. This does not apply if a phase change is encountered. Every substance has to be measured separately .
When you touch a cold object state whether heat energy flows from the object to your Hand or from your hand to the object?
Heat has the natural tendency to flow from a warmer to a colder object. If your hand is warmer than the "cold object", then heat will flow from your hand to that object.
What equation indicates an endothermic equation?
An endothermic reaction occur with heat absorption.
Factors affect heat gained or lost?
-heat capacity of the object (equal to mass times the specific heat capacity of the object) -overall change in temperature.
Equation for calculating if mass is known?
according to energy heat equation e=mc^2 where c is speed we can calculate energy
What are the factors that can affect how quickly an object's heat is gained or lost through radiation?
convection & conduction:)
How much heat is absorbed when 500 g of water Cp equals 4184 Jg oC goes from 250 oC to 350 oC?
Heat gained by one object = Heat lost by the other. Does that help?
How do you know how hot an object is?
Heat is a form of energy. The energy is tied to the molecules of the object. The faster the molecules in an object vibrate, the more heat energy it contains and therefore the more hotter it is. By measuring the amount of vibration in an objects molecules, you can calculate how hot it is.
How is heat included in the equation of the endothermic reaction?
on the left side of the equation
What is the general equation of heat loss?
If you're looking for an equation that describes the loss of heat of an object in terms of time and the ambient temperature I would recommend Newton's law of cooling. Look for it here http://www.ugrad.math.ubc.ca/coursedoc/math100/notes/diffeqs/cool.html
Let's say there are two objects Object 1 has a high specific heat and Object 2 has a low specific heat Which object would heat more I'll give trust point and recommend contributor?
Heat energy (gained/lost)= mass x specific heat capacity x temperature(rise/fall) Now with this expression we come to know that for a given mass and with a given amount of heat energy in joule, as sp. heat cap is more then rise / fall in temperature will be less and vice versa.
Where does heat appear in the equation?
What equation are you referring to
Can energy be used up or can energy be lost?
Energy isn't "used up" but instead is converted into different forms like heat (thermal) and motion (kinetic) but when talking about an object we say the object has lost or gained energy.
What is heat equation?
The parabolic heat equation is a partial differential equation that models the diffusion of heat (i.e. temperature) through a medium through time. More information, including a spreadsheet to solve the heat equation in Excel, is given at the related link.
What is parabolic heat equation?
The parabolic heat equation is a partial differential equation that models the diffusion of heat (i.e. temperature) through a medium through time. More information, including a spreadsheet to solve the heat equation in Excel, is given at the related link.
