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For the specific heat capacity equation q equals m x C x Δt does change in temperature always have to be positive?
Wiki User
∙ 11y ago
no
Wiki User
∙ 11y ago
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Effect of temperature on specific heat of material?
The effect of temperature on specific heat of material is referred to as specific heat capacity.
What two things affect energy?
Its temperature and its specific thermal capacity
What does the amount of energy needed to heat water depend on?
The equation Q=mcΔ t calculates the amount of energy for a body of mass to raise a unit temperature per unit mass. The specific heat capacity of water is 4.19 J/g°C which means that it takes 4.19 J to raise 1 g of water to 1°. The specific heat capacity also depends on what the surrounding temperature is. 4.19 J/g°C is the specific heat capacity at room temperature. Since temperature is the measurement of the average kinetic energy of the particles, the motion of particles in water affects the specific heat capacity which ultimately affects how much energy is needed to heat up water.
Dimensional formula for heat capacity and specific heat capacity?
heat capacity- ML2T-2K-1 Specific Heat Capacity-M0L2T-2K-1
What two things affect thermal energy?
Its temperature and its specific thermal capacity
What factor most influence the amount of energy needed to change the temperature of a substance?
specific heat capacity
What is the equation relating temperature heat and specific heat capacity to each other?
H = m s t H - heat energy in joule m- mass of the body in kg s - specific heat capacity J / kg / K t - the temperature difference may be a rise or fall in K
What is specific heat capacity equation?
Quantity of Energy= mass x temperature change x specific heat capacity For example: Find the amount of energy needed to raise the temperature of 0.20 kg of lead by 15 degree Celsius if the specific heat capacity of lead is 0.90 J/g degree Celsius. Answer: J=200g x 15 degree Celsius x 0.90 J/g degree Celsius = 2700 J
Effect of temperature on specific heat of material?
The effect of temperature on specific heat of material is referred to as specific heat capacity.
What will be the Specific heat during an isothermal process?
That's kind of a trick question. Specific heat - also known as "heat capacity" is the energy required to change the temperature by a fixed amount. In the case of an isothermal process, the temperature isn't changing. Since specific heat is defined as (δH/δT), isothermal heat capacity would be (δH/δT)T which means, in English, the change in enthalpy with a change in temperature when the temperature isn't changing... you see the problem. If δT = 0, then δH/δT = ±∞ (positive if heat is added to the system to keep the temperature constant, negative if heat was removed to keep it isothermal) You could write some equations such that the heat capacity becomes a term in the equation. What you will generally find though is that the heat capacity is multiplying a dT term and when dT is zero, that term drops out and heat capacity is irrelevant for the calculation.
What is used to find the specific heat capacity of a substance?
The equation for specific heat is: C = q/temp. change x mass. C is a substance's specific heat, which is a constant for every substance. q is its heat capacity in joules, temp. change is the change in temperature in degrees Celsius, and mass is in grams.
Would substances with high specific heat capacity also have high temperatures?
Specific heat capacity is the amount of energy or heat required to raise the temperature of a unit mass of a substance by one kelvin. So if the specific heat capacity is high then you would require more energy or heat to raise its temperature. The specific heat capacity does not really have anything to do with how much you can increase an objects temperature. IT HAS TO DO WITH THE ENERGY NEEDED TO INCREASE THE TEMPERATURE.
In which temperature water has maximum specific heat capacity?
The specific heat capacity of water does not change much within-phase (ie, as a solid it has one specific heat capacity, as a liquid/gas it has another)
What two things affect energy?
Its temperature and its specific thermal capacity
What does the amount of energy needed to heat water depend on?
The equation Q=mcΔ t calculates the amount of energy for a body of mass to raise a unit temperature per unit mass. The specific heat capacity of water is 4.19 J/g°C which means that it takes 4.19 J to raise 1 g of water to 1°. The specific heat capacity also depends on what the surrounding temperature is. 4.19 J/g°C is the specific heat capacity at room temperature. Since temperature is the measurement of the average kinetic energy of the particles, the motion of particles in water affects the specific heat capacity which ultimately affects how much energy is needed to heat up water.
Dimensional formula for heat capacity and specific heat capacity?
heat capacity- ML2T-2K-1 Specific Heat Capacity-M0L2T-2K-1
What is the specific heat constant of oxygen?
heat constant = mass * specific heat capacity * temperature change
