Calculating how much heat must be added to increase temp

In summary, the formula for calculating heat is Q = mCΔT, where Q is the amount of heat, m is the mass of the object, C is the specific heat capacity of the material, and ΔT is the change in temperature. To calculate the specific heat capacity of a material, you need to know the amount of heat added (Q), the mass of the material (m), and the change in temperature (ΔT). It is necessary to know the mass of the object in order to calculate heat, as it is an important factor in the calculation. The formula Q = mCΔT can be used to calculate heat for different materials, but the specific heat capacity (C) will vary. The
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john ryan
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Can anyone help me with this?

-How much heat must be added to 3.5 m3 /s of moist air with a dry bulb temperature of 10°C and a relative humidity of 60% to raise the temperature of the air by 17°C?

• What will be the relative humidity of the air once this heat is added?

• What is the power required in the heating unit?
 
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  • #2
john ryan said:
Can anyone help me with this?

-How much heat must be added to 3.5 m3 /s of moist air with a dry bulb temperature of 10°C and a relative humidity of 60% to raise the temperature of the air by 17°C?

• What will be the relative humidity of the air once this heat is added?

• What is the power required in the heating unit?
Please re-post this in the homework help forum, follow the template and make an effort to try and solve it yourself. Thread locked.
 
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1. How do you calculate the amount of heat needed to increase temperature?

The amount of heat needed to increase temperature can be calculated using the formula Q = mcΔT, where Q is the amount of heat, m is the mass of the substance, c is the specific heat capacity, and ΔT is the change in temperature.

2. What is specific heat capacity?

Specific heat capacity is the amount of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius. It is measured in joules per gram per degree Celsius (J/g°C).

3. How does the mass of a substance affect the amount of heat needed to increase temperature?

The greater the mass of a substance, the more heat is needed to increase its temperature. This is because it takes more energy to raise the temperature of a larger amount of substance compared to a smaller amount.

4. What is the relationship between specific heat capacity and the amount of heat needed to increase temperature?

The higher the specific heat capacity of a substance, the more heat is needed to increase its temperature. This means that substances with higher specific heat capacities require more energy to raise their temperature compared to substances with lower specific heat capacities.

5. Can the amount of heat needed to increase temperature be negative?

No, the amount of heat needed to increase temperature cannot be negative. It represents the energy required to raise the temperature of a substance, so it is always a positive value.

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