Respuesta :
Answer:
236.76 J
Explanation:
Parameters given:
Mass of sample, m = 6.50 g
Initial temperature, [tex]T_1 = 34^o C[/tex]
Final temperature, [tex]T_2 = 189^oC[/tex]
Specific heat capacity of gold, [tex]c = 0.235 J/g^oC[/tex]
Heat of a substance is related to specific heat capacity by the formula:
[tex]H = mc(T_2 - T_1)[/tex]
[tex]H = 6.5 * 0.235 * (189 - 34)\\\\\\H = 6.5 * 0.235 * 155\\\\\\H = 236.76 J[/tex]
236.76 J of heat is required to raise the temperature of the sample.
The quantity of heat, in Joules, required to raise the temperature is 236.76 J
Heat
From the question we are to determine quantity of heat required
Using the formula
Q = mcΔT
Where Q is the quantity of heat
m is the mass of substance
c is the specific heat capacity
and ΔT is the change in temperature
From the given information,
m = 6.50 g
c = 0.235 J/g °C
ΔT = 189 °C - 34 °C = 155 °C
Putting the parameters into the formula, we get
Q = 6.50 × 0.235 × 155
Q = 236.76 J
Hence, the quantity of heat, in Joules, required to raise the temperature is 236.76 J
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