The specific heat capacity of copper is 0.09 cal/g°C. How much energy is needed to flow into a 10-gram sample to change its temperature from 20°C to 21°C?
q = mass Cu x specific heat Cu x delta T. Look up specific heat, substitute the numbers and solve for q.
thanks @ DrBob222
To calculate the amount of energy needed to change the temperature of a sample, you can use the formula:
Q = mcΔT
where:
Q is the energy required,
m is the mass of the sample,
c is the specific heat capacity of the material, and
ΔT is the change in temperature.
Given:
m = 10 grams
c = 0.09 cal/g°C
ΔT = 1°C
Substituting the given values into the formula:
Q = (10 grams) * (0.09 cal/g°C) * (1°C)
Q = 0.9 cal
Therefore, 0.9 calories of energy is needed to raise the temperature of a 10-gram sample of copper from 20°C to 21°C.
To calculate the amount of energy needed to change the temperature of a substance, we can use the formula:
Q = m * c * ΔT
Where:
Q - amount of energy (in calories)
m - mass of the substance (in grams)
c - specific heat capacity of the substance (in cal/g°C)
ΔT - change in temperature (in °C)
In this case, we have:
m = 10 g (mass of the sample)
c = 0.09 cal/g°C (specific heat capacity of copper)
ΔT = 21°C - 20°C = 1°C (change in temperature)
Now we can substitute the values into the formula and solve for Q:
Q = 10 g * 0.09 cal/g°C * 1°C
= 0.9 cal
Therefore, the amount of energy needed to flow into the 10-gram sample of copper to change its temperature from 20°C to 21°C is 0.9 calories.