The table below shows the density of a sample of a mystery liquid you tested in the lab. Can you infer the identity of the subst
ance from these data?
A. Yes, the substance must be water.
B. No, more data are needed.
C. No, the data must be wrong because density always decreases with an increase in temperature.
D. Yes, but only if the data for 50ºC and 70ºC were also present.
A. Yes, the substance must be water.
B. No, more data are needed.
C. No, the data must be wrong because density always decreases with an increase in temperature.
D. Yes, but only if the data for 50ºC and 70ºC were also present.
1 answer:
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Explanation:
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Answer : The specific heat of the substance is 0.0936 J/g °C
Explanation :
The amount of heat Q can be calculated using following formula.
Where Q is the amount of heat required = 300 J
m is the mass of the substance = 267 g
ΔT is the change in temperature = 12°C
C is the specific heat of the substance.
We want to solve for C, so the equation for Q is modified as follows.
Let us plug in the values in above equation.
C = 0.0936 J/g °C
The specific heat of the substance is 0.0936 J/g°C